diff --git a/dist/2.0/fineui.ie.js b/dist/2.0/fineui.ie.js
index e74bdac0a..ee5409429 100644
--- a/dist/2.0/fineui.ie.js
+++ b/dist/2.0/fineui.ie.js
@@ -38881,7 +38881,7 @@ BI.Combo = BI.inherit(BI.Widget, {
             baseCls: (conf.baseCls || "") + " bi-combo",
             trigger: "click",
             toggle: true,
-            direction: "bottom", // top||bottom||left||right||top,left||top,right||bottom,left||bottom,right||right,left
+            direction: "bottom", // top||bottom||left||right||top,left||top,right||bottom,left||bottom,right||right,innerRight
             logic: {
                 dynamic: true
             },
diff --git a/dist/2.0/fineui.js b/dist/2.0/fineui.js
index 0732d866c..23cad4360 100644
--- a/dist/2.0/fineui.js
+++ b/dist/2.0/fineui.js
@@ -39285,7 +39285,7 @@ BI.Combo = BI.inherit(BI.Widget, {
             baseCls: (conf.baseCls || "") + " bi-combo",
             trigger: "click",
             toggle: true,
-            direction: "bottom", // top||bottom||left||right||top,left||top,right||bottom,left||bottom,right||right,left
+            direction: "bottom", // top||bottom||left||right||top,left||top,right||bottom,left||bottom,right||right,innerRight
             logic: {
                 dynamic: true
             },
diff --git a/dist/base.js b/dist/base.js
index e382d14fb..cc07aab8a 100644
--- a/dist/base.js
+++ b/dist/base.js
@@ -3324,7 +3324,7 @@ BI.Combo = BI.inherit(BI.Widget, {
             baseCls: (conf.baseCls || "") + " bi-combo",
             trigger: "click",
             toggle: true,
-            direction: "bottom", // top||bottom||left||right||top,left||top,right||bottom,left||bottom,right||right,left
+            direction: "bottom", // top||bottom||left||right||top,left||top,right||bottom,left||bottom,right||right,innerRight
             logic: {
                 dynamic: true
             },
diff --git a/dist/bundle.ie.js b/dist/bundle.ie.js
index e74bdac0a..ee5409429 100644
--- a/dist/bundle.ie.js
+++ b/dist/bundle.ie.js
@@ -38881,7 +38881,7 @@ BI.Combo = BI.inherit(BI.Widget, {
             baseCls: (conf.baseCls || "") + " bi-combo",
             trigger: "click",
             toggle: true,
-            direction: "bottom", // top||bottom||left||right||top,left||top,right||bottom,left||bottom,right||right,left
+            direction: "bottom", // top||bottom||left||right||top,left||top,right||bottom,left||bottom,right||right,innerRight
             logic: {
                 dynamic: true
             },
diff --git a/dist/bundle.js b/dist/bundle.js
index 0732d866c..23cad4360 100644
--- a/dist/bundle.js
+++ b/dist/bundle.js
@@ -39285,7 +39285,7 @@ BI.Combo = BI.inherit(BI.Widget, {
             baseCls: (conf.baseCls || "") + " bi-combo",
             trigger: "click",
             toggle: true,
-            direction: "bottom", // top||bottom||left||right||top,left||top,right||bottom,left||bottom,right||right,left
+            direction: "bottom", // top||bottom||left||right||top,left||top,right||bottom,left||bottom,right||right,innerRight
             logic: {
                 dynamic: true
             },
diff --git a/dist/fineui.ie.js b/dist/fineui.ie.js
index 2501974ab..1da57e9a9 100644
--- a/dist/fineui.ie.js
+++ b/dist/fineui.ie.js
@@ -39126,7 +39126,7 @@ BI.Combo = BI.inherit(BI.Widget, {
             baseCls: (conf.baseCls || "") + " bi-combo",
             trigger: "click",
             toggle: true,
-            direction: "bottom", // top||bottom||left||right||top,left||top,right||bottom,left||bottom,right||right,left
+            direction: "bottom", // top||bottom||left||right||top,left||top,right||bottom,left||bottom,right||right,innerRight
             logic: {
                 dynamic: true
             },
diff --git a/dist/fineui.js b/dist/fineui.js
index 164887aa7..f27b77831 100644
--- a/dist/fineui.js
+++ b/dist/fineui.js
@@ -39530,7 +39530,7 @@ BI.Combo = BI.inherit(BI.Widget, {
             baseCls: (conf.baseCls || "") + " bi-combo",
             trigger: "click",
             toggle: true,
-            direction: "bottom", // top||bottom||left||right||top,left||top,right||bottom,left||bottom,right||right,left
+            direction: "bottom", // top||bottom||left||right||top,left||top,right||bottom,left||bottom,right||right,innerRight
             logic: {
                 dynamic: true
             },
diff --git a/dist/fineui_without_jquery_polyfill.js b/dist/fineui_without_jquery_polyfill.js
index ce83a8e39..7d8448731 100644
--- a/dist/fineui_without_jquery_polyfill.js
+++ b/dist/fineui_without_jquery_polyfill.js
@@ -26656,7 +26656,7 @@ BI.Combo = BI.inherit(BI.Widget, {
             baseCls: (conf.baseCls || "") + " bi-combo",
             trigger: "click",
             toggle: true,
-            direction: "bottom", // top||bottom||left||right||top,left||top,right||bottom,left||bottom,right||right,left
+            direction: "bottom", // top||bottom||left||right||top,left||top,right||bottom,left||bottom,right||right,innerRight
             logic: {
                 dynamic: true
             },
diff --git a/public/css/background.css b/public/css/background.css
index 06d0a8e7f..1440b9854 100644
--- a/public/css/background.css
+++ b/public/css/background.css
@@ -1,344 +1,212 @@
 .bi-farbtastic .wheel {
   background: url('http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/1x/background/wheel.png') no-repeat center center;
-  _filter: progid:DXImageTransform.Microsoft.AlphaImageLoader(src='http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/1x/background/wheel.png');
-  _background: none;
 }
 .bi-farbtastic .overlay {
   background: url('http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/1x/background/mask.png') no-repeat center center;
-  _filter: progid:DXImageTransform.Microsoft.AlphaImageLoader(src='http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/1x/background/mask.png');
-  _background: none;
 }
 .bi-farbtastic .marker {
   background: url('http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/1x/background/marker.png') no-repeat center center;
-  _filter: progid:DXImageTransform.Microsoft.AlphaImageLoader(src='http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/1x/background/marker.png');
-  _background: none;
 }
 .bi-display-tree .ztree li span.button.switch.center_open {
   background: url('http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/1x/icon/tree_vertical_line_3.png') no-repeat center center;
-  _filter: progid:DXImageTransform.Microsoft.AlphaImageLoader(src='http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/1x/icon/tree_vertical_line_3.png');
-  _background: none;
 }
 .bi-display-tree .ztree li span.button.switch.roots_open {
   background: url('http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/1x/icon/tree_vertical_line_2.png') no-repeat center center;
-  _filter: progid:DXImageTransform.Microsoft.AlphaImageLoader(src='http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/1x/icon/tree_vertical_line_2.png');
-  _background: none;
 }
 .bi-display-tree .ztree li span.button.switch.bottom_open {
   background: url('http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/1x/icon/tree_vertical_line_4.png') no-repeat center center;
-  _filter: progid:DXImageTransform.Microsoft.AlphaImageLoader(src='http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/1x/icon/tree_vertical_line_4.png');
-  _background: none;
 }
 .ztree li ul.line {
   background: url('http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/1x/icon/tree_vertical_line_1.png') repeat-y 1px 0;
-  _filter: progid:DXImageTransform.Microsoft.AlphaImageLoader(src='http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/1x/icon/tree_vertical_line_1.png');
-  _background: none;
 }
 .bi-theme-dark .ztree li ul.line {
   background: url('http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/1x/icon/dark/tree_vertical_line_1.png') repeat-y 1px 0;
-  _filter: progid:DXImageTransform.Microsoft.AlphaImageLoader(src='http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/1x/icon/dark/tree_vertical_line_1.png');
-  _background: none;
 }
 .ztree li span.button.chk.checkbox_false_full {
   background: url('http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/2x/icon/check_box_normal.png') no-repeat center center;
-  _filter: progid:DXImageTransform.Microsoft.AlphaImageLoader(src='http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/2x/icon/check_box_normal.png');
   background-size: contain;
-  _background: none;
 }
 .ztree li span.button.chk.checkbox_false_full_focus {
   background: url('http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/2x/icon/check_box_normal.png') no-repeat center center;
-  _filter: progid:DXImageTransform.Microsoft.AlphaImageLoader(src='http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/2x/icon/check_box_normal.png');
   background-size: contain;
-  _background: none;
 }
 .ztree li span.button.chk.checkbox_false_part {
-  background: url('http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/2x/icon/half_selected.png') no-repeat center center;
-  _filter: progid:DXImageTransform.Microsoft.AlphaImageLoader(src='http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/2x/icon/half_selected.png');
+  background: url('http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/2x/icon/check_box_normal.png') no-repeat center center;
   background-size: contain;
-  _background: none;
 }
 .ztree li span.button.chk.checkbox_false_part_focus {
   background: url('http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/2x/icon/half_selected.png') no-repeat center center;
-  _filter: progid:DXImageTransform.Microsoft.AlphaImageLoader(src='http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/2x/icon/half_selected.png');
   background-size: contain;
-  _background: none;
 }
 .ztree li span.button.chk.checkbox_true_full {
   background: url('http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/2x/icon/check_box_active.png') no-repeat center center;
-  _filter: progid:DXImageTransform.Microsoft.AlphaImageLoader(src='http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/2x/icon/check_box_active.png');
   background-size: contain;
-  _background: none;
 }
 .ztree li span.button.chk.checkbox_true_full_focus {
   background: url('http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/2x/icon/check_box_active.png') no-repeat center center;
-  _filter: progid:DXImageTransform.Microsoft.AlphaImageLoader(src='http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/2x/icon/check_box_active.png');
   background-size: contain;
-  _background: none;
 }
 .ztree li span.button.chk.checkbox_true_part {
   background: url('http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/2x/icon/half_selected.png') no-repeat center center;
-  _filter: progid:DXImageTransform.Microsoft.AlphaImageLoader(src='http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/2x/icon/half_selected.png');
   background-size: contain;
-  _background: none;
 }
 .ztree li span.button.chk.checkbox_true_part_focus {
   background: url('http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/2x/icon/half_selected.png') no-repeat center center;
-  _filter: progid:DXImageTransform.Microsoft.AlphaImageLoader(src='http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/2x/icon/half_selected.png');
   background-size: contain;
-  _background: none;
 }
 .ztree.hack li span.button.chk.checkbox_false_full {
   background: url('http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/1x/icon/check_box_normal.png') no-repeat center center;
-  _filter: progid:DXImageTransform.Microsoft.AlphaImageLoader(src='http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/1x/icon/check_box_normal.png');
-  _background: none;
 }
 .ztree.hack li span.button.chk.checkbox_false_full_focus {
   background: url('http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/1x/icon/check_box_normal.png') no-repeat center center;
-  _filter: progid:DXImageTransform.Microsoft.AlphaImageLoader(src='http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/1x/icon/check_box_normal.png');
-  _background: none;
 }
 .ztree.hack li span.button.chk.checkbox_false_part {
-  background: url('http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/1x/icon/half_selected.png') no-repeat center center;
-  _filter: progid:DXImageTransform.Microsoft.AlphaImageLoader(src='http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/1x/icon/half_selected.png');
-  _background: none;
+  background: url('http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/1x/icon/check_box_normal.png') no-repeat center center;
 }
 .ztree.hack li span.button.chk.checkbox_false_part_focus {
   background: url('http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/1x/icon/half_selected.png') no-repeat center center;
-  _filter: progid:DXImageTransform.Microsoft.AlphaImageLoader(src='http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/1x/icon/half_selected.png');
-  _background: none;
 }
 .ztree.hack li span.button.chk.checkbox_true_full {
   background: url('http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/1x/icon/check_box_active.png') no-repeat center center;
-  _filter: progid:DXImageTransform.Microsoft.AlphaImageLoader(src='http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/1x/icon/check_box_active.png');
-  _background: none;
 }
 .ztree.hack li span.button.chk.checkbox_true_full_focus {
   background: url('http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/1x/icon/check_box_active.png') no-repeat center center;
-  _filter: progid:DXImageTransform.Microsoft.AlphaImageLoader(src='http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/1x/icon/check_box_active.png');
-  _background: none;
 }
 .ztree.hack li span.button.chk.checkbox_true_part {
   background: url('http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/1x/icon/half_selected.png') no-repeat center center;
-  _filter: progid:DXImageTransform.Microsoft.AlphaImageLoader(src='http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/1x/icon/half_selected.png');
-  _background: none;
 }
 .ztree.hack li span.button.chk.checkbox_true_part_focus {
   background: url('http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/1x/icon/half_selected.png') no-repeat center center;
-  _filter: progid:DXImageTransform.Microsoft.AlphaImageLoader(src='http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/1x/icon/half_selected.png');
-  _background: none;
 }
 .ztree li span.button.root_open {
   background: url('http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/1x/icon/tree_expand_1.png') no-repeat center center;
-  _filter: progid:DXImageTransform.Microsoft.AlphaImageLoader(src='http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/1x/icon/tree_expand_1.png');
-  _background: none;
 }
 .bi-theme-dark .ztree li span.button.root_open {
   background: url('http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/1x/icon/dark/tree_expand_1.png') no-repeat center center;
-  _filter: progid:DXImageTransform.Microsoft.AlphaImageLoader(src='http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/1x/icon/dark/tree_expand_1.png');
-  _background: none;
 }
 .ztree li span.button.root_close {
   background: url('http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/1x/icon/tree_collapse_1.png') no-repeat center center;
-  _filter: progid:DXImageTransform.Microsoft.AlphaImageLoader(src='http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/1x/icon/tree_collapse_1.png');
-  _background: none;
 }
 .bi-theme-dark .ztree li span.button.root_close {
   background: url('http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/1x/icon/dark/tree_collapse_1.png') no-repeat center center;
-  _filter: progid:DXImageTransform.Microsoft.AlphaImageLoader(src='http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/1x/icon/dark/tree_collapse_1.png');
-  _background: none;
 }
 .ztree li span.button.roots_open {
   background: url('http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/1x/icon/tree_expand_2.png') no-repeat center center;
-  _filter: progid:DXImageTransform.Microsoft.AlphaImageLoader(src='http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/1x/icon/tree_expand_2.png');
-  _background: none;
 }
 .bi-theme-dark .ztree li span.button.roots_open {
   background: url('http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/1x/icon/dark/tree_expand_2.png') no-repeat center center;
-  _filter: progid:DXImageTransform.Microsoft.AlphaImageLoader(src='http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/1x/icon/dark/tree_expand_2.png');
-  _background: none;
 }
 .ztree li span.button.roots_close {
   background: url('http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/1x/icon/tree_collapse_2.png') no-repeat center center;
-  _filter: progid:DXImageTransform.Microsoft.AlphaImageLoader(src='http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/1x/icon/tree_collapse_2.png');
-  _background: none;
 }
 .bi-theme-dark .ztree li span.button.roots_close {
   background: url('http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/1x/icon/dark/tree_collapse_2.png') no-repeat center center;
-  _filter: progid:DXImageTransform.Microsoft.AlphaImageLoader(src='http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/1x/icon/dark/tree_collapse_2.png');
-  _background: none;
 }
 .ztree li span.button.center_open {
   background: url('http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/1x/icon/tree_expand_3.png') no-repeat center center;
-  _filter: progid:DXImageTransform.Microsoft.AlphaImageLoader(src='http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/1x/icon/tree_expand_3.png');
-  _background: none;
 }
 .bi-theme-dark .ztree li span.button.center_open {
   background: url('http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/1x/icon/dark/tree_expand_3.png') no-repeat center center;
-  _filter: progid:DXImageTransform.Microsoft.AlphaImageLoader(src='http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/1x/icon/dark/tree_expand_3.png');
-  _background: none;
 }
 .ztree li span.button.center_close {
   background: url('http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/1x/icon/tree_collapse_3.png') no-repeat center center;
-  _filter: progid:DXImageTransform.Microsoft.AlphaImageLoader(src='http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/1x/icon/tree_collapse_3.png');
-  _background: none;
 }
 .bi-theme-dark .ztree li span.button.center_close {
   background: url('http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/1x/icon/dark/tree_collapse_3.png') no-repeat center center;
-  _filter: progid:DXImageTransform.Microsoft.AlphaImageLoader(src='http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/1x/icon/dark/tree_collapse_3.png');
-  _background: none;
 }
 .ztree li span.button.bottom_open {
   background: url('http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/1x/icon/tree_expand_4.png') no-repeat center center;
-  _filter: progid:DXImageTransform.Microsoft.AlphaImageLoader(src='http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/1x/icon/tree_expand_4.png');
-  _background: none;
 }
 .bi-theme-dark .ztree li span.button.bottom_open {
   background: url('http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/1x/icon/dark/tree_expand_4.png') no-repeat center center;
-  _filter: progid:DXImageTransform.Microsoft.AlphaImageLoader(src='http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/1x/icon/dark/tree_expand_4.png');
-  _background: none;
 }
 .ztree li span.button.bottom_close {
   background: url('http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/1x/icon/tree_collapse_4.png') no-repeat center center;
-  _filter: progid:DXImageTransform.Microsoft.AlphaImageLoader(src='http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/1x/icon/tree_collapse_4.png');
-  _background: none;
 }
 .bi-theme-dark .ztree li span.button.bottom_close {
   background: url('http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/1x/icon/dark/tree_collapse_4.png') no-repeat center center;
-  _filter: progid:DXImageTransform.Microsoft.AlphaImageLoader(src='http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/1x/icon/dark/tree_collapse_4.png');
-  _background: none;
 }
 .ztree li span.button.roots_docu {
   background: url('http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/1x/icon/tree_vertical_line_2.png') no-repeat center center;
-  _filter: progid:DXImageTransform.Microsoft.AlphaImageLoader(src='http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/1x/icon/tree_vertical_line_2.png');
-  _background: none;
 }
 .bi-theme-dark .ztree li span.button.roots_docu {
   background: url('http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/1x/icon/dark/tree_vertical_line_2.png') no-repeat center center;
-  _filter: progid:DXImageTransform.Microsoft.AlphaImageLoader(src='http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/1x/icon/dark/tree_vertical_line_2.png');
-  _background: none;
 }
 .ztree li span.button.center_docu {
   background: url('http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/1x/icon/tree_vertical_line_3.png') no-repeat center center;
-  _filter: progid:DXImageTransform.Microsoft.AlphaImageLoader(src='http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/1x/icon/tree_vertical_line_3.png');
-  _background: none;
 }
 .bi-theme-dark .ztree li span.button.center_docu {
   background: url('http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/1x/icon/dark/tree_vertical_line_3.png') no-repeat center center;
-  _filter: progid:DXImageTransform.Microsoft.AlphaImageLoader(src='http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/1x/icon/dark/tree_vertical_line_3.png');
-  _background: none;
 }
 .ztree li span.button.bottom_docu {
   background: url('http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/1x/icon/tree_vertical_line_4.png') no-repeat center center;
-  _filter: progid:DXImageTransform.Microsoft.AlphaImageLoader(src='http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/1x/icon/tree_vertical_line_4.png');
-  _background: none;
 }
 .bi-theme-dark .ztree li span.button.bottom_docu {
   background: url('http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/1x/icon/dark/tree_vertical_line_4.png') no-repeat center center;
-  _filter: progid:DXImageTransform.Microsoft.AlphaImageLoader(src='http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/1x/icon/dark/tree_vertical_line_4.png');
-  _background: none;
 }
 .ztree li span.button.ico_loading {
   background: url('http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/1x/icon/loading.gif') no-repeat center center;
-  _filter: progid:DXImageTransform.Microsoft.AlphaImageLoader(src='http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/1x/icon/loading.gif');
-  _background: none;
 }
 .base-line-conn-background {
   background: url('http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/1x/icon/tree_vertical_line_1.png') repeat-y 0 0;
-  _filter: progid:DXImageTransform.Microsoft.AlphaImageLoader(src='http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/1x/icon/tree_vertical_line_1.png');
-  _background: none;
 }
 .bi-theme-dark .base-line-conn-background {
   background: url('http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/1x/icon/dark/tree_vertical_line_1.png') repeat-y 0 0;
-  _filter: progid:DXImageTransform.Microsoft.AlphaImageLoader(src='http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/1x/icon/dark/tree_vertical_line_1.png');
-  _background: none;
 }
 .first-line-conn-background {
   background: url('http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/1x/icon/tree_vertical_line_2.png') no-repeat center center;
-  _filter: progid:DXImageTransform.Microsoft.AlphaImageLoader(src='http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/1x/icon/tree_vertical_line_2.png');
-  _background: none;
 }
 .bi-theme-dark .first-line-conn-background {
   background: url('http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/1x/icon/dark/tree_vertical_line_2.png') no-repeat center center;
-  _filter: progid:DXImageTransform.Microsoft.AlphaImageLoader(src='http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/1x/icon/dark/tree_vertical_line_2.png');
-  _background: none;
 }
 .mid-line-conn-background {
   background: url('http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/1x/icon/tree_vertical_line_3.png') no-repeat center center;
-  _filter: progid:DXImageTransform.Microsoft.AlphaImageLoader(src='http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/1x/icon/tree_vertical_line_3.png');
-  _background: none;
 }
 .bi-theme-dark .mid-line-conn-background {
   background: url('http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/1x/icon/dark/tree_vertical_line_3.png') no-repeat center center;
-  _filter: progid:DXImageTransform.Microsoft.AlphaImageLoader(src='http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/1x/icon/dark/tree_vertical_line_3.png');
-  _background: none;
 }
 .last-line-conn-background {
   background: url('http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/1x/icon/tree_vertical_line_4.png') no-repeat center center;
-  _filter: progid:DXImageTransform.Microsoft.AlphaImageLoader(src='http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/1x/icon/tree_vertical_line_4.png');
-  _background: none;
 }
 .bi-theme-dark .last-line-conn-background {
   background: url('http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/1x/icon/dark/tree_vertical_line_4.png') no-repeat center center;
-  _filter: progid:DXImageTransform.Microsoft.AlphaImageLoader(src='http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/1x/icon/dark/tree_vertical_line_4.png');
-  _background: none;
 }
 .loading-background {
   background: url('http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/2x/icon/loading.gif') no-repeat center center;
-  _filter: progid:DXImageTransform.Microsoft.AlphaImageLoader(src='http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/2x/icon/loading.gif');
   background-size: contain;
-  _background: none;
 }
 .auto-color-background {
   background: url('http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/2x/background/auto_color.png') no-repeat center center;
-  _filter: progid:DXImageTransform.Microsoft.AlphaImageLoader(src='http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/2x/background/auto_color.png');
   background-size: contain;
-  _background: none;
 }
 .auto-color-normal-background {
   background: url('http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/2x/background/auto_color_normal.png') no-repeat center center;
-  _filter: progid:DXImageTransform.Microsoft.AlphaImageLoader(src='http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/2x/background/auto_color_normal.png');
   background-size: contain;
-  _background: none;
 }
 .auto-color-normal-disabled-background {
   background: url('http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/2x/background/auto_color_normal_disable.png') no-repeat center center;
-  _filter: progid:DXImageTransform.Microsoft.AlphaImageLoader(src='http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/2x/background/auto_color_normal_disable.png');
   background-size: contain;
-  _background: none;
 }
 .trans-color-background {
   background: url('http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/2x/background/trans_normal.png') no-repeat center center;
-  _filter: progid:DXImageTransform.Microsoft.AlphaImageLoader(src='http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/2x/background/trans_normal.png');
   background-size: contain;
-  _background: none;
 }
 .trans-color-disabled-background {
   background: url('http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/2x/background/trans_disable.png') no-repeat center center;
-  _filter: progid:DXImageTransform.Microsoft.AlphaImageLoader(src='http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/2x/background/trans_disable.png');
   background-size: contain;
-  _background: none;
 }
 .auto-color-background.hack {
   background: url('http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/1x/background/auto_color.png') no-repeat center center;
-  _filter: progid:DXImageTransform.Microsoft.AlphaImageLoader(src='http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/1x/background/auto_color.png');
-  _background: none;
 }
 .auto-color-normal-background.hack {
   background: url('http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/1x/background/auto_color_normal.png') no-repeat center center;
-  _filter: progid:DXImageTransform.Microsoft.AlphaImageLoader(src='http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/1x/background/auto_color_normal.png');
-  _background: none;
 }
 .auto-color-normal-disabled-background.hack {
   background: url('http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/1x/background/auto_color_normal_disable.png') no-repeat center center;
-  _filter: progid:DXImageTransform.Microsoft.AlphaImageLoader(src='http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/1x/background/auto_color_normal_disable.png');
-  _background: none;
 }
 .trans-color-background.hack {
   background: url('http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/1x/background/trans_normal.png') no-repeat center center;
-  _filter: progid:DXImageTransform.Microsoft.AlphaImageLoader(src='http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/1x/background/trans_normal.png');
-  _background: none;
 }
 .trans-color-disabled-background.hack {
   background: url('http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/1x/background/trans_disable.png') no-repeat center center;
-  _filter: progid:DXImageTransform.Microsoft.AlphaImageLoader(src='http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/1x/background/trans_disable.png');
-  _background: none;
 }
diff --git a/public/css/font.css b/public/css/font.css
index 0d45e92fb..27deae83b 100644
--- a/public/css/font.css
+++ b/public/css/font.css
@@ -1,14 +1,13 @@
 @font-face {
-  font-family: 'bi';
+  font-family: "fineui";
   src: url('http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/font/iconfont.eot');
   src: url('http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/font/iconfont.eot?#iefix') format('embedded-opentype'), /* IE6-IE8 */ url('http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/font/iconfont.woff') format('woff'), /* chrome、firefox */ url('http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/font/iconfont.ttf') format('truetype'), /* chrome、firefox、opera、Safari, Android, iOS 4.2+*/ url('http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/font/iconfont.svg#svgFontName') format('svg');
   /*  iOS 4.1- */
 }
 .b-font {
-  font-family: "bi";
+  font-family: 'fineui';
   font-style: normal;
   -webkit-font-smoothing: antialiased;
-  -webkit-text-stroke-width: 0.2px;
   -moz-osx-font-smoothing: grayscale;
 }
 .close-font .b-font {
diff --git a/public/css/icon.css b/public/css/icon.css
index f3b7371ee..b37123133 100644
--- a/public/css/icon.css
+++ b/public/css/icon.css
@@ -1,546 +1,366 @@
 .tree-collapse-icon-type1 .x-icon {
   display: block;
   background: url('http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/2x/icon/tree_collapse_1.png') no-repeat center center;
-  _filter: progid:DXImageTransform.Microsoft.AlphaImageLoader(src='http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/2x/icon/tree_collapse_1.png');
   background-size: contain;
-  _background: none;
 }
 .tree-collapse-icon-type1 .x-icon.hack {
   background: url('http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/1x/icon/tree_collapse_1.png') no-repeat center center;
-  _filter: progid:DXImageTransform.Microsoft.AlphaImageLoader(src='http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/1x/icon/tree_collapse_1.png');
-  _background: none;
 }
 .tree-collapse-icon-type2 .x-icon {
   display: block;
   background: url('http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/2x/icon/tree_collapse_2.png') no-repeat center center;
-  _filter: progid:DXImageTransform.Microsoft.AlphaImageLoader(src='http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/2x/icon/tree_collapse_2.png');
   background-size: contain;
-  _background: none;
 }
 .tree-collapse-icon-type2 .x-icon.hack {
   background: url('http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/1x/icon/tree_collapse_2.png') no-repeat center center;
-  _filter: progid:DXImageTransform.Microsoft.AlphaImageLoader(src='http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/1x/icon/tree_collapse_2.png');
-  _background: none;
 }
 .tree-collapse-icon-type3 .x-icon {
   display: block;
   background: url('http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/2x/icon/tree_collapse_3.png') no-repeat center center;
-  _filter: progid:DXImageTransform.Microsoft.AlphaImageLoader(src='http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/2x/icon/tree_collapse_3.png');
   background-size: contain;
-  _background: none;
 }
 .tree-collapse-icon-type3 .x-icon.hack {
   background: url('http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/1x/icon/tree_collapse_3.png') no-repeat center center;
-  _filter: progid:DXImageTransform.Microsoft.AlphaImageLoader(src='http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/1x/icon/tree_collapse_3.png');
-  _background: none;
 }
 .tree-collapse-icon-type4 .x-icon {
   display: block;
   background: url('http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/2x/icon/tree_collapse_4.png') no-repeat center center;
-  _filter: progid:DXImageTransform.Microsoft.AlphaImageLoader(src='http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/2x/icon/tree_collapse_4.png');
   background-size: contain;
-  _background: none;
 }
 .tree-collapse-icon-type4 .x-icon.hack {
   background: url('http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/1x/icon/tree_collapse_4.png') no-repeat center center;
-  _filter: progid:DXImageTransform.Microsoft.AlphaImageLoader(src='http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/1x/icon/tree_collapse_4.png');
-  _background: none;
 }
 .tree-expand-icon-type1 .x-icon {
   display: block;
   background: url('http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/2x/icon/tree_expand_1.png') no-repeat center center;
-  _filter: progid:DXImageTransform.Microsoft.AlphaImageLoader(src='http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/2x/icon/tree_expand_1.png');
   background-size: contain;
-  _background: none;
 }
 .tree-expand-icon-type1 .x-icon.hack {
   background: url('http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/1x/icon/tree_expand_1.png') no-repeat center center;
-  _filter: progid:DXImageTransform.Microsoft.AlphaImageLoader(src='http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/1x/icon/tree_expand_1.png');
-  _background: none;
 }
 .tree-expand-icon-type2 .x-icon {
   display: block;
   background: url('http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/2x/icon/tree_expand_2.png') no-repeat center center;
-  _filter: progid:DXImageTransform.Microsoft.AlphaImageLoader(src='http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/2x/icon/tree_expand_2.png');
   background-size: contain;
-  _background: none;
 }
 .tree-expand-icon-type2 .x-icon.hack {
   background: url('http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/1x/icon/tree_expand_2.png') no-repeat center center;
-  _filter: progid:DXImageTransform.Microsoft.AlphaImageLoader(src='http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/1x/icon/tree_expand_2.png');
-  _background: none;
 }
 .tree-expand-icon-type3 .x-icon {
   display: block;
   background: url('http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/2x/icon/tree_expand_3.png') no-repeat center center;
-  _filter: progid:DXImageTransform.Microsoft.AlphaImageLoader(src='http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/2x/icon/tree_expand_3.png');
   background-size: contain;
-  _background: none;
 }
 .tree-expand-icon-type3 .x-icon.hack {
   background: url('http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/1x/icon/tree_expand_3.png') no-repeat center center;
-  _filter: progid:DXImageTransform.Microsoft.AlphaImageLoader(src='http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/1x/icon/tree_expand_3.png');
-  _background: none;
 }
 .tree-expand-icon-type4 .x-icon {
   display: block;
   background: url('http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/2x/icon/tree_expand_4.png') no-repeat center center;
-  _filter: progid:DXImageTransform.Microsoft.AlphaImageLoader(src='http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/2x/icon/tree_expand_4.png');
   background-size: contain;
-  _background: none;
 }
 .tree-expand-icon-type4 .x-icon.hack {
   background: url('http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/1x/icon/tree_expand_4.png') no-repeat center center;
-  _filter: progid:DXImageTransform.Microsoft.AlphaImageLoader(src='http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/1x/icon/tree_expand_4.png');
-  _background: none;
 }
 .tree-vertical-line-type2 .x-icon {
   display: block;
   background: url('http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/2x/icon/tree_vertical_line_2.png') no-repeat center center;
-  _filter: progid:DXImageTransform.Microsoft.AlphaImageLoader(src='http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/2x/icon/tree_vertical_line_2.png');
   background-size: contain;
-  _background: none;
 }
 .tree-vertical-line-type2 .x-icon.hack {
   background: url('http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/1x/icon/tree_vertical_line_2.png') no-repeat center center;
-  _filter: progid:DXImageTransform.Microsoft.AlphaImageLoader(src='http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/1x/icon/tree_vertical_line_2.png');
-  _background: none;
 }
 .tree-vertical-line-type3 .x-icon {
   display: block;
   background: url('http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/2x/icon/tree_vertical_line_3.png') no-repeat center center;
-  _filter: progid:DXImageTransform.Microsoft.AlphaImageLoader(src='http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/2x/icon/tree_vertical_line_3.png');
   background-size: contain;
-  _background: none;
 }
 .tree-vertical-line-type3 .x-icon.hack {
   background: url('http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/1x/icon/tree_vertical_line_3.png') no-repeat center center;
-  _filter: progid:DXImageTransform.Microsoft.AlphaImageLoader(src='http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/1x/icon/tree_vertical_line_3.png');
-  _background: none;
 }
 .tree-vertical-line-type4 .x-icon {
   display: block;
   background: url('http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/2x/icon/tree_vertical_line_4.png') no-repeat center center;
-  _filter: progid:DXImageTransform.Microsoft.AlphaImageLoader(src='http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/2x/icon/tree_vertical_line_4.png');
   background-size: contain;
-  _background: none;
 }
 .tree-vertical-line-type4 .x-icon.hack {
   background: url('http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/1x/icon/tree_vertical_line_4.png') no-repeat center center;
-  _filter: progid:DXImageTransform.Microsoft.AlphaImageLoader(src='http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/1x/icon/tree_vertical_line_4.png');
-  _background: none;
 }
 .bi-theme-dark .tree-collapse-icon-type1 .x-icon {
   display: block;
   background: url('http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/2x/icon/dark/tree_collapse_1.png') no-repeat center center;
-  _filter: progid:DXImageTransform.Microsoft.AlphaImageLoader(src='http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/2x/icon/dark/tree_collapse_1.png');
   background-size: contain;
-  _background: none;
 }
 .bi-theme-dark .tree-collapse-icon-type1 .x-icon.hack {
   background: url('http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/1x/icon/dark/tree_collapse_1.png') no-repeat center center;
-  _filter: progid:DXImageTransform.Microsoft.AlphaImageLoader(src='http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/1x/icon/dark/tree_collapse_1.png');
-  _background: none;
 }
 .bi-theme-dark .tree-collapse-icon-type2 .x-icon {
   display: block;
   background: url('http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/2x/icon/dark/tree_collapse_2.png') no-repeat center center;
-  _filter: progid:DXImageTransform.Microsoft.AlphaImageLoader(src='http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/2x/icon/dark/tree_collapse_2.png');
   background-size: contain;
-  _background: none;
 }
 .bi-theme-dark .tree-collapse-icon-type2 .x-icon.hack {
   background: url('http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/1x/icon/dark/tree_collapse_2.png') no-repeat center center;
-  _filter: progid:DXImageTransform.Microsoft.AlphaImageLoader(src='http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/1x/icon/dark/tree_collapse_2.png');
-  _background: none;
 }
 .bi-theme-dark .tree-collapse-icon-type3 .x-icon {
   display: block;
   background: url('http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/2x/icon/dark/tree_collapse_3.png') no-repeat center center;
-  _filter: progid:DXImageTransform.Microsoft.AlphaImageLoader(src='http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/2x/icon/dark/tree_collapse_3.png');
   background-size: contain;
-  _background: none;
 }
 .bi-theme-dark .tree-collapse-icon-type3 .x-icon.hack {
   background: url('http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/1x/icon/dark/tree_collapse_3.png') no-repeat center center;
-  _filter: progid:DXImageTransform.Microsoft.AlphaImageLoader(src='http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/1x/icon/dark/tree_collapse_3.png');
-  _background: none;
 }
 .bi-theme-dark .tree-collapse-icon-type4 .x-icon {
   display: block;
   background: url('http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/2x/icon/dark/tree_collapse_4.png') no-repeat center center;
-  _filter: progid:DXImageTransform.Microsoft.AlphaImageLoader(src='http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/2x/icon/dark/tree_collapse_4.png');
   background-size: contain;
-  _background: none;
 }
 .bi-theme-dark .tree-collapse-icon-type4 .x-icon.hack {
   background: url('http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/1x/icon/dark/tree_collapse_4.png') no-repeat center center;
-  _filter: progid:DXImageTransform.Microsoft.AlphaImageLoader(src='http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/1x/icon/dark/tree_collapse_4.png');
-  _background: none;
 }
 .bi-theme-dark .tree-expand-icon-type1 .x-icon {
   display: block;
   background: url('http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/2x/icon/dark/tree_expand_1.png') no-repeat center center;
-  _filter: progid:DXImageTransform.Microsoft.AlphaImageLoader(src='http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/2x/icon/dark/tree_expand_1.png');
   background-size: contain;
-  _background: none;
 }
 .bi-theme-dark .tree-expand-icon-type1 .x-icon.hack {
   background: url('http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/1x/icon/dark/tree_expand_1.png') no-repeat center center;
-  _filter: progid:DXImageTransform.Microsoft.AlphaImageLoader(src='http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/1x/icon/dark/tree_expand_1.png');
-  _background: none;
 }
 .bi-theme-dark .tree-expand-icon-type2 .x-icon {
   display: block;
   background: url('http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/2x/icon/dark/tree_expand_2.png') no-repeat center center;
-  _filter: progid:DXImageTransform.Microsoft.AlphaImageLoader(src='http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/2x/icon/dark/tree_expand_2.png');
   background-size: contain;
-  _background: none;
 }
 .bi-theme-dark .tree-expand-icon-type2 .x-icon.hack {
   background: url('http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/1x/icon/dark/tree_expand_2.png') no-repeat center center;
-  _filter: progid:DXImageTransform.Microsoft.AlphaImageLoader(src='http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/1x/icon/dark/tree_expand_2.png');
-  _background: none;
 }
 .bi-theme-dark .tree-expand-icon-type3 .x-icon {
   display: block;
   background: url('http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/2x/icon/dark/tree_expand_3.png') no-repeat center center;
-  _filter: progid:DXImageTransform.Microsoft.AlphaImageLoader(src='http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/2x/icon/dark/tree_expand_3.png');
   background-size: contain;
-  _background: none;
 }
 .bi-theme-dark .tree-expand-icon-type3 .x-icon.hack {
   background: url('http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/1x/icon/dark/tree_expand_3.png') no-repeat center center;
-  _filter: progid:DXImageTransform.Microsoft.AlphaImageLoader(src='http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/1x/icon/dark/tree_expand_3.png');
-  _background: none;
 }
 .bi-theme-dark .tree-expand-icon-type4 .x-icon {
   display: block;
   background: url('http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/2x/icon/dark/tree_expand_4.png') no-repeat center center;
-  _filter: progid:DXImageTransform.Microsoft.AlphaImageLoader(src='http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/2x/icon/dark/tree_expand_4.png');
   background-size: contain;
-  _background: none;
 }
 .bi-theme-dark .tree-expand-icon-type4 .x-icon.hack {
   background: url('http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/1x/icon/dark/tree_expand_4.png') no-repeat center center;
-  _filter: progid:DXImageTransform.Microsoft.AlphaImageLoader(src='http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/1x/icon/dark/tree_expand_4.png');
-  _background: none;
 }
 .bi-theme-dark .tree-vertical-line-type2 .x-icon {
   display: block;
   background: url('http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/2x/icon/dark/tree_vertical_line_2.png') no-repeat center center;
-  _filter: progid:DXImageTransform.Microsoft.AlphaImageLoader(src='http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/2x/icon/dark/tree_vertical_line_2.png');
   background-size: contain;
-  _background: none;
 }
 .bi-theme-dark .tree-vertical-line-type2 .x-icon.hack {
   background: url('http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/1x/icon/dark/tree_vertical_line_2.png') no-repeat center center;
-  _filter: progid:DXImageTransform.Microsoft.AlphaImageLoader(src='http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/1x/icon/dark/tree_vertical_line_2.png');
-  _background: none;
 }
 .bi-theme-dark .tree-vertical-line-type3 .x-icon {
   display: block;
   background: url('http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/2x/icon/dark/tree_vertical_line_3.png') no-repeat center center;
-  _filter: progid:DXImageTransform.Microsoft.AlphaImageLoader(src='http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/2x/icon/dark/tree_vertical_line_3.png');
   background-size: contain;
-  _background: none;
 }
 .bi-theme-dark .tree-vertical-line-type3 .x-icon.hack {
   background: url('http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/1x/icon/dark/tree_vertical_line_3.png') no-repeat center center;
-  _filter: progid:DXImageTransform.Microsoft.AlphaImageLoader(src='http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/1x/icon/dark/tree_vertical_line_3.png');
-  _background: none;
 }
 .bi-theme-dark .tree-vertical-line-type4 .x-icon {
   display: block;
   background: url('http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/2x/icon/dark/tree_vertical_line_4.png') no-repeat center center;
-  _filter: progid:DXImageTransform.Microsoft.AlphaImageLoader(src='http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/2x/icon/dark/tree_vertical_line_4.png');
   background-size: contain;
-  _background: none;
 }
 .bi-theme-dark .tree-vertical-line-type4 .x-icon.hack {
   background: url('http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/1x/icon/dark/tree_vertical_line_4.png') no-repeat center center;
-  _filter: progid:DXImageTransform.Microsoft.AlphaImageLoader(src='http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/1x/icon/dark/tree_vertical_line_4.png');
-  _background: none;
 }
 .check-box-icon .x-icon {
   display: block;
   background: url('http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/2x/icon/check_box_normal.png') no-repeat center center;
-  _filter: progid:DXImageTransform.Microsoft.AlphaImageLoader(src='http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/2x/icon/check_box_normal.png');
   background-size: contain;
-  _background: none;
 }
 .check-box-icon .x-icon.hack {
   background: url('http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/1x/icon/check_box_normal.png') no-repeat center center;
-  _filter: progid:DXImageTransform.Microsoft.AlphaImageLoader(src='http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/1x/icon/check_box_normal.png');
-  _background: none;
 }
 .check-box-icon:hover .x-icon,
 .check-box-icon.hover .x-icon {
   display: block;
   background: url('http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/2x/icon/check_box_normal.png') no-repeat center center;
-  _filter: progid:DXImageTransform.Microsoft.AlphaImageLoader(src='http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/2x/icon/check_box_normal.png');
   background-size: contain;
-  _background: none;
 }
 .check-box-icon:hover .x-icon.hack,
 .check-box-icon.hover .x-icon.hack {
   background: url('http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/1x/icon/check_box_normal.png') no-repeat center center;
-  _filter: progid:DXImageTransform.Microsoft.AlphaImageLoader(src='http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/1x/icon/check_box_normal.png');
-  _background: none;
 }
 .check-box-icon:active .x-icon {
   display: block;
   background: url('http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/2x/icon/check_box_normal.png') no-repeat center center;
-  _filter: progid:DXImageTransform.Microsoft.AlphaImageLoader(src='http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/2x/icon/check_box_normal.png');
   background-size: contain;
-  _background: none;
 }
 .check-box-icon:active .x-icon.hack {
   background: url('http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/1x/icon/check_box_normal.png') no-repeat center center;
-  _filter: progid:DXImageTransform.Microsoft.AlphaImageLoader(src='http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/1x/icon/check_box_normal.png');
-  _background: none;
 }
 .check-box-icon.active .x-icon {
   display: block;
   background: url('http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/2x/icon/check_box_active.png') no-repeat center center;
-  _filter: progid:DXImageTransform.Microsoft.AlphaImageLoader(src='http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/2x/icon/check_box_active.png');
   background-size: contain;
-  _background: none;
 }
 .check-box-icon.active .x-icon.hack {
   background: url('http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/1x/icon/check_box_active.png') no-repeat center center;
-  _filter: progid:DXImageTransform.Microsoft.AlphaImageLoader(src='http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/1x/icon/check_box_active.png');
-  _background: none;
 }
 .check-box-icon.disabled .x-icon {
   display: block;
   background: url('http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/2x/icon/check_box_disable.png') no-repeat center center;
-  _filter: progid:DXImageTransform.Microsoft.AlphaImageLoader(src='http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/2x/icon/check_box_disable.png');
   background-size: contain;
-  _background: none;
 }
 .check-box-icon.disabled .x-icon.hack {
   background: url('http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/1x/icon/check_box_disable.png') no-repeat center center;
-  _filter: progid:DXImageTransform.Microsoft.AlphaImageLoader(src='http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/1x/icon/check_box_disable.png');
-  _background: none;
 }
 .check-box-icon.disabled.active .x-icon {
   display: block;
   background: url('http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/2x/icon/check_box_disable2.png') no-repeat center center;
-  _filter: progid:DXImageTransform.Microsoft.AlphaImageLoader(src='http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/2x/icon/check_box_disable2.png');
   background-size: contain;
-  _background: none;
 }
 .check-box-icon.disabled.active .x-icon.hack {
   background: url('http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/1x/icon/check_box_disable2.png') no-repeat center center;
-  _filter: progid:DXImageTransform.Microsoft.AlphaImageLoader(src='http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/1x/icon/check_box_disable2.png');
-  _background: none;
 }
 .radio-icon .x-icon {
   display: block;
   background: url('http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/2x/icon/radio_normal.png') no-repeat center center;
-  _filter: progid:DXImageTransform.Microsoft.AlphaImageLoader(src='http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/2x/icon/radio_normal.png');
   background-size: contain;
-  _background: none;
 }
 .radio-icon .x-icon.hack {
   background: url('http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/1x/icon/radio_normal.png') no-repeat center center;
-  _filter: progid:DXImageTransform.Microsoft.AlphaImageLoader(src='http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/1x/icon/radio_normal.png');
-  _background: none;
 }
 .radio-icon:hover .x-icon,
 .radio-icon.hover .x-icon {
   display: block;
   background: url('http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/2x/icon/radio_normal.png') no-repeat center center;
-  _filter: progid:DXImageTransform.Microsoft.AlphaImageLoader(src='http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/2x/icon/radio_normal.png');
   background-size: contain;
-  _background: none;
 }
 .radio-icon:hover .x-icon.hack,
 .radio-icon.hover .x-icon.hack {
   background: url('http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/1x/icon/radio_normal.png') no-repeat center center;
-  _filter: progid:DXImageTransform.Microsoft.AlphaImageLoader(src='http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/1x/icon/radio_normal.png');
-  _background: none;
 }
 .radio-icon:active .x-icon {
   display: block;
   background: url('http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/2x/icon/radio_normal.png') no-repeat center center;
-  _filter: progid:DXImageTransform.Microsoft.AlphaImageLoader(src='http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/2x/icon/radio_normal.png');
   background-size: contain;
-  _background: none;
 }
 .radio-icon:active .x-icon.hack {
   background: url('http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/1x/icon/radio_normal.png') no-repeat center center;
-  _filter: progid:DXImageTransform.Microsoft.AlphaImageLoader(src='http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/1x/icon/radio_normal.png');
-  _background: none;
 }
 .radio-icon.active .x-icon {
   display: block;
   background: url('http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/2x/icon/radio_active.png') no-repeat center center;
-  _filter: progid:DXImageTransform.Microsoft.AlphaImageLoader(src='http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/2x/icon/radio_active.png');
   background-size: contain;
-  _background: none;
 }
 .radio-icon.active .x-icon.hack {
   background: url('http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/1x/icon/radio_active.png') no-repeat center center;
-  _filter: progid:DXImageTransform.Microsoft.AlphaImageLoader(src='http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/1x/icon/radio_active.png');
-  _background: none;
 }
 .radio-icon.disabled .x-icon {
   display: block;
   background: url('http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/2x/icon/radio_disable.png') no-repeat center center;
-  _filter: progid:DXImageTransform.Microsoft.AlphaImageLoader(src='http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/2x/icon/radio_disable.png');
   background-size: contain;
-  _background: none;
 }
 .radio-icon.disabled .x-icon.hack {
   background: url('http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/1x/icon/radio_disable.png') no-repeat center center;
-  _filter: progid:DXImageTransform.Microsoft.AlphaImageLoader(src='http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/1x/icon/radio_disable.png');
-  _background: none;
 }
 .radio-icon.disabled.active .x-icon {
   display: block;
   background: url('http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/2x/icon/radio_disable2.png') no-repeat center center;
-  _filter: progid:DXImageTransform.Microsoft.AlphaImageLoader(src='http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/2x/icon/radio_disable2.png');
   background-size: contain;
-  _background: none;
 }
 .radio-icon.disabled.active .x-icon.hack {
   background: url('http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/1x/icon/radio_disable2.png') no-repeat center center;
-  _filter: progid:DXImageTransform.Microsoft.AlphaImageLoader(src='http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/1x/icon/radio_disable2.png');
-  _background: none;
 }
 .check-half-select-icon .x-icon {
   display: block;
   background: url('http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/2x/icon/half_selected.png') no-repeat center center;
-  _filter: progid:DXImageTransform.Microsoft.AlphaImageLoader(src='http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/2x/icon/half_selected.png');
   background-size: contain;
-  _background: none;
 }
 .check-half-select-icon .x-icon.hack {
   background: url('http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/1x/icon/half_selected.png') no-repeat center center;
-  _filter: progid:DXImageTransform.Microsoft.AlphaImageLoader(src='http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/1x/icon/half_selected.png');
-  _background: none;
 }
 .check-half-select-icon.disabled .x-icon {
   display: block;
   background: url('http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/2x/icon/half_selected_disable.png') no-repeat center center;
-  _filter: progid:DXImageTransform.Microsoft.AlphaImageLoader(src='http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/2x/icon/half_selected_disable.png');
   background-size: contain;
-  _background: none;
 }
 .check-half-select-icon.disabled .x-icon.hack {
   background: url('http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/1x/icon/half_selected_disable.png') no-repeat center center;
-  _filter: progid:DXImageTransform.Microsoft.AlphaImageLoader(src='http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/1x/icon/half_selected_disable.png');
-  _background: none;
 }
 .slider-icon .x-icon {
   display: block;
   background: url('http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/2x/icon/slider_normal_small.png') no-repeat center center;
-  _filter: progid:DXImageTransform.Microsoft.AlphaImageLoader(src='http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/2x/icon/slider_normal_small.png');
   background-size: contain;
-  _background: none;
 }
 .slider-icon .x-icon.hack {
   background: url('http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/1x/icon/slider_normal_small.png') no-repeat center center;
-  _filter: progid:DXImageTransform.Microsoft.AlphaImageLoader(src='http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/1x/icon/slider_normal_small.png');
-  _background: none;
 }
 .slider-icon:hover .x-icon,
 .slider-icon.hover .x-icon {
   display: block;
   background: url('http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/2x/icon/slider_active_small.png') no-repeat center center;
-  _filter: progid:DXImageTransform.Microsoft.AlphaImageLoader(src='http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/2x/icon/slider_active_small.png');
   background-size: contain;
-  _background: none;
 }
 .slider-icon:hover .x-icon.hack,
 .slider-icon.hover .x-icon.hack {
   background: url('http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/1x/icon/slider_active_small.png') no-repeat center center;
-  _filter: progid:DXImageTransform.Microsoft.AlphaImageLoader(src='http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/1x/icon/slider_active_small.png');
-  _background: none;
 }
 .slider-icon.disabled .x-icon {
   display: block;
   background: url('http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/2x/icon/slider_normal_small.png') no-repeat center center;
-  _filter: progid:DXImageTransform.Microsoft.AlphaImageLoader(src='http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/2x/icon/slider_normal_small.png');
   background-size: contain;
-  _background: none;
 }
 .slider-icon.disabled .x-icon.hack {
   background: url('http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/1x/icon/slider_normal_small.png') no-repeat center center;
-  _filter: progid:DXImageTransform.Microsoft.AlphaImageLoader(src='http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/1x/icon/slider_normal_small.png');
-  _background: none;
 }
 .auto-color-icon .x-icon {
   display: block;
   background: url('http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/2x/icon/auto_normal.png') no-repeat center center;
-  _filter: progid:DXImageTransform.Microsoft.AlphaImageLoader(src='http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/2x/icon/auto_normal.png');
   background-size: contain;
-  _background: none;
 }
 .auto-color-icon .x-icon.hack {
   background: url('http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/1x/icon/auto_normal.png') no-repeat center center;
-  _filter: progid:DXImageTransform.Microsoft.AlphaImageLoader(src='http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/1x/icon/auto_normal.png');
-  _background: none;
 }
 .auto-color-icon.active .x-icon {
   display: block;
   background: url('http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/2x/icon/auto_select.png') no-repeat center center;
-  _filter: progid:DXImageTransform.Microsoft.AlphaImageLoader(src='http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/2x/icon/auto_select.png');
   background-size: contain;
-  _background: none;
 }
 .auto-color-icon.active .x-icon.hack {
   background: url('http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/1x/icon/auto_select.png') no-repeat center center;
-  _filter: progid:DXImageTransform.Microsoft.AlphaImageLoader(src='http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/1x/icon/auto_select.png');
-  _background: none;
 }
 .auto-color-icon.disabled .x-icon {
   display: block;
   background: url('http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/2x/icon/auto_disable.png') no-repeat center center;
-  _filter: progid:DXImageTransform.Microsoft.AlphaImageLoader(src='http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/2x/icon/auto_disable.png');
   background-size: contain;
-  _background: none;
 }
 .auto-color-icon.disabled .x-icon.hack {
   background: url('http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/1x/icon/auto_disable.png') no-repeat center center;
-  _filter: progid:DXImageTransform.Microsoft.AlphaImageLoader(src='http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/1x/icon/auto_disable.png');
-  _background: none;
 }
 .trans-color-icon .x-icon {
   display: block;
   background: url('http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/2x/icon/trans_normal.png') no-repeat center center;
-  _filter: progid:DXImageTransform.Microsoft.AlphaImageLoader(src='http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/2x/icon/trans_normal.png');
   background-size: contain;
-  _background: none;
 }
 .trans-color-icon .x-icon.hack {
   background: url('http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/1x/icon/trans_normal.png') no-repeat center center;
-  _filter: progid:DXImageTransform.Microsoft.AlphaImageLoader(src='http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/1x/icon/trans_normal.png');
-  _background: none;
 }
 .trans-color-icon.active .x-icon {
   display: block;
   background: url('http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/2x/icon/trans_select.png') no-repeat center center;
-  _filter: progid:DXImageTransform.Microsoft.AlphaImageLoader(src='http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/2x/icon/trans_select.png');
   background-size: contain;
-  _background: none;
 }
 .trans-color-icon.active .x-icon.hack {
   background: url('http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/1x/icon/trans_select.png') no-repeat center center;
-  _filter: progid:DXImageTransform.Microsoft.AlphaImageLoader(src='http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/1x/icon/trans_select.png');
-  _background: none;
 }
 .trans-color-icon.disabled .x-icon {
   display: block;
   background: url('http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/2x/icon/trans_disable.png') no-repeat center center;
-  _filter: progid:DXImageTransform.Microsoft.AlphaImageLoader(src='http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/2x/icon/trans_disable.png');
   background-size: contain;
-  _background: none;
 }
 .trans-color-icon.disabled .x-icon.hack {
   background: url('http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/1x/icon/trans_disable.png') no-repeat center center;
-  _filter: progid:DXImageTransform.Microsoft.AlphaImageLoader(src='http://fine-design-storage.oss-cn-shanghai.aliyuncs.com/fineui/2.0/images/1x/icon/trans_disable.png');
-  _background: none;
 }
diff --git a/src/base/combination/combo.js b/src/base/combination/combo.js
index b48290e3c..74dded902 100644
--- a/src/base/combination/combo.js
+++ b/src/base/combination/combo.js
@@ -9,7 +9,7 @@ BI.Combo = BI.inherit(BI.Widget, {
             baseCls: (conf.baseCls || "") + " bi-combo",
             trigger: "click",
             toggle: true,
-            direction: "bottom", // top||bottom||left||right||top,left||top,right||bottom,left||bottom,right||right,left
+            direction: "bottom", // top||bottom||left||right||top,left||top,right||bottom,left||bottom,right||right,innerRight
             logic: {
                 dynamic: true
             },