diff --git a/demo/css/main.css b/demo/css/main.css
index 7a34fff76..039fce052 100644
--- a/demo/css/main.css
+++ b/demo/css/main.css
@@ -1,6 +1,3 @@
-* {
-  font-family: 'Source Sans Pro', 'Helvetica Neue', Helvetica, Arial, sans-serif;
-}
 .layout-bg-white {
   background-color: #ffffff;
 }
diff --git a/demo/js/base/demo.pager.js b/demo/js/base/demo.pager.js
new file mode 100644
index 000000000..a131fbce1
--- /dev/null
+++ b/demo/js/base/demo.pager.js
@@ -0,0 +1,120 @@
+Demo.Func = BI.inherit(BI.Widget, {
+    props: {
+        baseCls: "demo-func"
+    },
+    render: function () {
+        return {
+            type: "bi.vertical",
+            items: [{
+                type: "bi.label",
+                height: 30,
+                text: "默认的分页"
+            }, {
+                type: "bi.pager",
+                height: 50,
+                pages: 18,
+                groups: 5,
+                curr: 6,
+                first: "首页",
+                last: "尾页"
+            }, {
+                type: "bi.label",
+                height: 30,
+                text: "显示上一页、下一页、首页、尾页"
+            }, {
+                type: "bi.pager",
+                dynamicShow: false,
+                height: 50,
+                pages: 18,
+                groups: 5,
+                curr: 1,
+                first: "首页>",
+                last: "<尾页"
+            }, {
+                type: "bi.label",
+                height: 30,
+                text: "显示上一页、下一页"
+            }, {
+                type: "bi.pager",
+                dynamicShow: false,
+                dynamicShowFirstLast: true,
+                height: 50,
+                pages: 18,
+                groups: 5,
+                curr: 1,
+                first: "首页>",
+                last: "<尾页"
+            }, {
+                type: "bi.label",
+                height: 30,
+                text: "自定义上一页、下一页"
+            }, {
+                type: "bi.pager",
+                dynamicShow: false,
+                height: 50,
+                pages: 18,
+                groups: 5,
+                curr: 6,
+                prev: {
+                    type: "bi.button",
+                    cls: "",
+                    text: "上一页",
+                    value: "prev",
+                    once: false,
+                    height: 30,
+                    handler: function () {
+
+                    }
+                },
+                next: {
+                    type: "bi.button",
+                    cls: "",
+                    text: "下一页",
+                    value: "next",
+                    once: false,
+                    handler: function () {
+
+                    }
+                }
+            }, {
+                type: "bi.label",
+                height: 30,
+                text: "不知道总页数的情况(测试条件 1<=page<=3)"
+            }, {
+                type: "bi.pager",
+                dynamicShow: false,
+                height: 50,
+                pages: false,
+                curr: 1,
+                prev: {
+                    type: "bi.button",
+                    cls: "",
+                    text: "上一页",
+                    value: "prev",
+                    once: false,
+                    height: 30,
+                    handler: function () {
+
+                    }
+                },
+                next: {
+                    type: "bi.button",
+                    cls: "",
+                    text: "下一页",
+                    value: "next",
+                    once: false,
+                    handler: function () {
+
+                    }
+                },
+                hasPrev: function (v) {
+                    return v > 1;
+                },
+                hasNext: function (v) {
+                    return v < 3;
+                }
+            }]
+        }
+    }
+});
+$.shortcut("demo.pager", Demo.Func);
\ No newline at end of file
diff --git a/demo/js/case/tree/demo.branch_relation.js b/demo/js/case/tree/demo.branch_relation.js
new file mode 100644
index 000000000..af7036280
--- /dev/null
+++ b/demo/js/case/tree/demo.branch_relation.js
@@ -0,0 +1,149 @@
+Demo.Func = BI.inherit(BI.Widget, {
+    props: {
+        baseCls: "demo-func"
+    },
+
+    render: function () {
+        var relation = BI.createWidget({
+            type: "bi.branch_relation",
+            items: [
+                {
+                    id: -1,
+                    value: "根目录",
+                    type: "bi.text_button",
+                    cls: "layout-bg2",
+                    width: 180,
+                    height: 100
+                },
+                {
+                    id: 1,
+                    pId: -1,
+                    value: "第一级目录1",
+                    type: "bi.text_button",
+                    cls: "layout-bg2",
+                    width: 180,
+                    height: 100
+                },
+                {
+                    id: 11,
+                    pId: 1,
+                    value: "第二级文件1",
+                    type: "bi.text_button",
+                    cls: "layout-bg2",
+                    width: 180,
+                    height: 100
+                },
+                {
+                    id: 12,
+                    pId: 1,
+                    value: "第二级目录1",
+                    type: "bi.text_button",
+                    cls: "layout-bg2",
+                    width: 180,
+                    height: 100
+                },
+                {
+                    id: 121,
+                    pId: 12,
+                    value: "第三级目录1",
+                    type: "bi.text_button",
+                    cls: "layout-bg2",
+                    width: 180,
+                    height: 100
+                },
+                {
+                    id: 122,
+                    pId: 12,
+                    value: "第三级文件1",
+                    type: "bi.text_button",
+                    cls: "layout-bg2",
+                    width: 180,
+                    height: 100
+                },
+                {
+                    id: 1211,
+                    pId: 121,
+                    value: "第四级目录",
+                    type: "bi.text_button",
+                    cls: "layout-bg2",
+                    width: 180,
+                    height: 100
+                },
+                {
+                    id: 12111,
+                    pId: 1211,
+                    value: "第五级文件1",
+                    type: "bi.text_button",
+                    cls: "layout-bg2",
+                    width: 180,
+                    height: 100
+                },
+                {
+                    id: 2,
+                    pId: -1,
+                    value: "第一级目录2",
+                    type: "bi.text_button",
+                    cls: "layout-bg2",
+                    width: 180,
+                    height: 100
+                },
+                {
+                    id: 21,
+                    pId: 2,
+                    value: "第二级目录2",
+                    type: "bi.text_button",
+                    cls: "layout-bg2",
+                    width: 180,
+                    height: 100
+                },
+                {
+                    id: 22,
+                    pId: 2,
+                    value: "第二级文件2",
+                    type: "bi.text_button",
+                    cls: "layout-bg2",
+                    width: 180,
+                    height: 100
+                },
+                {
+                    id: 211,
+                    pId: 21,
+                    value: "第三级目录2",
+                    type: "bi.text_button",
+                    cls: "layout-bg2",
+                    width: 180,
+                    height: 100
+                },
+                {
+                    id: 212,
+                    pId: 21,
+                    value: "第三级文件2",
+                    type: "bi.text_button",
+                    cls: "layout-bg2",
+                    width: 180,
+                    height: 100
+                },
+                {
+                    id: 2111,
+                    pId: 211,
+                    value: "第四级文件2",
+                    type: "bi.text_button",
+                    cls: "layout-bg2",
+                    width: 180,
+                    height: 100
+                }
+            ],
+
+            direction: BI.Direction.Right,
+            align: BI.HorizontalAlign.Right,
+
+            centerOffset: -50
+        });
+        BI.createWidget({
+            type: "bi.adaptive",
+            element: this,
+            items: [relation]
+        })
+    }
+});
+$.shortcut("demo.branch_relation", Demo.Func);
\ No newline at end of file
diff --git a/demo/js/config/case.js b/demo/js/config/case.js
index 062049d7b..be8bedf97 100644
--- a/demo/js/config/case.js
+++ b/demo/js/config/case.js
@@ -54,6 +54,10 @@ Demo.CASE_CONFIG = [{
     pId: 303,
     text: "bi.level_tree",
     value: "demo.level_tree"
+}, {
+    pId: 303,
+    text: "bi.branch_relation",
+    value: "demo.branch_relation"
 }, {
     pId: 3,
     id: 304,
diff --git a/demo/less/main.less b/demo/less/main.less
index 02d570723..3d7de426a 100644
--- a/demo/less/main.less
+++ b/demo/less/main.less
@@ -1,6 +1,3 @@
-* {
-  font-family: 'Source Sans Pro', 'Helvetica Neue', Helvetica, Arial, sans-serif;
-}
 
 .layout-bg-white {
   background-color: #ffffff;
diff --git a/dist/base.js b/dist/base.js
index f47bfd398..66653a559 100644
--- a/dist/base.js
+++ b/dist/base.js
@@ -15479,10 +15479,10 @@ BI.Pager = BI.inherit(BI.Widget, {
         var self = this;
         this.currPage = BI.result(this.options, "curr");
         //翻页太灵敏
-        this._lock = false;
-        this._debouce = BI.debounce(function () {
-            self._lock = false;
-        }, 300);
+        // this._lock = false;
+        // this._debouce = BI.debounce(function () {
+        //     self._lock = false;
+        // }, 300);
         this._populate();
     },
 
@@ -15618,11 +15618,11 @@ BI.Pager = BI.inherit(BI.Widget, {
             layouts: o.layouts
         });
         this.button_group.on(BI.Controller.EVENT_CHANGE, function (type, value, obj) {
-            if (self._lock === true) {
-                return;
-            }
-            self._lock = true;
-            self._debouce();
+            // if (self._lock === true) {
+            //     return;
+            // }
+            // self._lock = true;
+            // self._debouce();
             if (type === BI.Events.CLICK) {
                 var v = self.button_group.getValue()[0];
                 switch (v) {
@@ -28233,6 +28233,7 @@ BI.Svg = BI.inherit(BI.Widget, {
         BI.Svg.superclass._init.apply(this, arguments);
         this.paper = Raphael(this.element[0]);
 
+        this.element.css("overflow", "hidden");
         $(this.paper.canvas).width("100%").height("100%").css({"left": "0", "top": "0"}).appendTo(this.element);
 
         this.top = this.paper.top;
diff --git a/src/base/pager/pager.js b/src/base/pager/pager.js
index f4128c0fa..6dcf6ca02 100644
--- a/src/base/pager/pager.js
+++ b/src/base/pager/pager.js
@@ -45,10 +45,10 @@ BI.Pager = BI.inherit(BI.Widget, {
         var self = this;
         this.currPage = BI.result(this.options, "curr");
         //翻页太灵敏
-        this._lock = false;
-        this._debouce = BI.debounce(function () {
-            self._lock = false;
-        }, 300);
+        // this._lock = false;
+        // this._debouce = BI.debounce(function () {
+        //     self._lock = false;
+        // }, 300);
         this._populate();
     },
 
@@ -184,11 +184,11 @@ BI.Pager = BI.inherit(BI.Widget, {
             layouts: o.layouts
         });
         this.button_group.on(BI.Controller.EVENT_CHANGE, function (type, value, obj) {
-            if (self._lock === true) {
-                return;
-            }
-            self._lock = true;
-            self._debouce();
+            // if (self._lock === true) {
+            //     return;
+            // }
+            // self._lock = true;
+            // self._debouce();
             if (type === BI.Events.CLICK) {
                 var v = self.button_group.getValue()[0];
                 switch (v) {
diff --git a/src/base/svg/svg.js b/src/base/svg/svg.js
index adb3f3ab7..83b0e769a 100644
--- a/src/base/svg/svg.js
+++ b/src/base/svg/svg.js
@@ -17,6 +17,7 @@ BI.Svg = BI.inherit(BI.Widget, {
         BI.Svg.superclass._init.apply(this, arguments);
         this.paper = Raphael(this.element[0]);
 
+        this.element.css("overflow", "hidden");
         $(this.paper.canvas).width("100%").height("100%").css({"left": "0", "top": "0"}).appendTo(this.element);
 
         this.top = this.paper.top;
diff --git a/src/css/normalize.css b/src/css/normalize.css
deleted file mode 100644
index 65b0635b2..000000000
--- a/src/css/normalize.css
+++ /dev/null
@@ -1,230 +0,0 @@
-/*! normalize.css v1.0.0 | MIT License | git.io/normalize */
-article,
-aside,
-details,
-figcaption,
-figure,
-footer,
-header,
-hgroup,
-nav,
-section,
-summary {
-  display: block;
-}
-audio,
-canvas,
-video {
-  display: inline-block;
-  *display: inline;
-  *zoom: 1;
-}
-audio:not([controls]) {
-  display: none;
-  height: 0;
-}
-[hidden] {
-  display: none;
-}
-html {
-  font-size: 100%;
-  -webkit-text-size-adjust: 100%;
-  -ms-text-size-adjust: 100%;
-}
-html,
-button,
-input,
-select,
-textarea {
-  font-family: sans-serif;
-}
-body {
-  margin: 0;
-}
-a:focus {
-  outline: thin dotted;
-}
-a:active,
-a:hover {
-  outline: 0;
-}
-h1 {
-  font-size: 2em;
-  margin: 0.67em 0;
-}
-h2 {
-  font-size: 1.5em;
-  margin: 0.83em 0;
-}
-h3 {
-  font-size: 1.17em;
-  margin: 1em 0;
-}
-h4 {
-  font-size: 1em;
-  margin: 1.33em 0;
-}
-h5 {
-  font-size: .83em;
-  margin: 1.67em 0;
-}
-h6 {
-  font-size: .75em;
-  margin: 2.33em 0;
-}
-abbr[title] {
-  border-bottom: 1px dotted;
-}
-b,
-strong {
-  font-weight: bold;
-}
-blockquote {
-  margin: 1em 40px;
-}
-dfn {
-  font-style: italic;
-}
-mark {
-  background: #ff0;
-  color: #000000;
-}
-p,
-pre {
-  margin: 1em 0;
-}
-code,
-kbd,
-pre,
-samp {
-  font-family: monospace, serif;
-  _font-family: 'courier new', monospace;
-  font-size: 1em;
-}
-pre {
-  white-space: pre;
-  white-space: pre-wrap;
-  word-wrap: break-word;
-}
-q {
-  quotes: none;
-}
-q:before,
-q:after {
-  content: '';
-  content: none;
-}
-small {
-  font-size: 75%;
-}
-sub,
-sup {
-  font-size: 75%;
-  line-height: 0;
-  position: relative;
-  vertical-align: baseline;
-}
-sup {
-  top: -0.5em;
-}
-sub {
-  bottom: -0.25em;
-}
-dl,
-menu,
-ol,
-ul {
-  margin: 1em 0;
-}
-dd {
-  margin: 0 0 0 40px;
-}
-menu,
-ol,
-ul {
-  padding: 0 0 0 40px;
-}
-nav ul,
-nav ol {
-  list-style: none;
-  list-style-image: none;
-}
-img {
-  border: 0;
-  -ms-interpolation-mode: bicubic;
-}
-svg:not(:root) {
-  overflow: hidden;
-}
-figure {
-  margin: 0;
-}
-form {
-  margin: 0;
-}
-fieldset {
-  border: 1px solid #c0c0c0;
-  margin: 0 2px;
-  padding: 0.35em 0.625em 0.75em;
-}
-legend {
-  border: 0;
-  padding: 0;
-  white-space: normal;
-  *margin-left: -7px;
-}
-button,
-input,
-select,
-textarea {
-  font-size: 100%;
-  margin: 0;
-  vertical-align: baseline;
-  *vertical-align: middle;
-}
-button,
-input {
-  line-height: normal;
-}
-button,
-html input[type="button"],
-input[type="reset"],
-input[type="submit"] {
-  -webkit-appearance: button;
-  cursor: pointer;
-  *overflow: visible;
-}
-button[disabled],
-input[disabled] {
-  cursor: default;
-}
-input[type="checkbox"],
-input[type="radio"] {
-  box-sizing: border-box;
-  padding: 0;
-  *height: 13px;
-  *width: 13px;
-}
-input[type="search"] {
-  -webkit-appearance: textfield;
-  -moz-box-sizing: content-box;
-  -webkit-box-sizing: content-box;
-  box-sizing: content-box;
-}
-input[type="search"]::-webkit-search-cancel-button,
-input[type="search"]::-webkit-search-decoration {
-  -webkit-appearance: none;
-}
-button::-moz-focus-inner,
-input::-moz-focus-inner {
-  border: 0;
-  padding: 0;
-}
-textarea {
-  overflow: auto;
-  vertical-align: top;
-}
-table {
-  border-collapse: collapse;
-  border-spacing: 0;
-}
diff --git a/src/css/reset.css b/src/css/reset.css
new file mode 100644
index 000000000..0007ead9b
--- /dev/null
+++ b/src/css/reset.css
@@ -0,0 +1,128 @@
+/* http://meyerweb.com/eric/tools/css/reset/
+   v2.0 | 20110126
+   License: none (public domain)
+*/
+html,
+body,
+div,
+span,
+applet,
+object,
+iframe,
+h1,
+h2,
+h3,
+h4,
+h5,
+h6,
+p,
+blockquote,
+pre,
+a,
+abbr,
+acronym,
+address,
+big,
+cite,
+code,
+del,
+dfn,
+em,
+img,
+ins,
+kbd,
+q,
+s,
+samp,
+small,
+strike,
+strong,
+sub,
+sup,
+tt,
+var,
+b,
+u,
+i,
+center,
+dl,
+dt,
+dd,
+ol,
+ul,
+li,
+fieldset,
+form,
+label,
+legend,
+table,
+caption,
+tbody,
+tfoot,
+thead,
+tr,
+th,
+td,
+article,
+aside,
+canvas,
+details,
+embed,
+figure,
+figcaption,
+footer,
+header,
+hgroup,
+menu,
+nav,
+output,
+ruby,
+section,
+summary,
+time,
+mark,
+audio,
+video {
+  margin: 0;
+  padding: 0;
+  border: 0;
+  font-size: 100%;
+  font: inherit;
+  vertical-align: baseline;
+}
+/* HTML5 display-role reset for older browsers */
+article,
+aside,
+details,
+figcaption,
+figure,
+footer,
+header,
+hgroup,
+menu,
+nav,
+section {
+  display: block;
+}
+body {
+  line-height: 1;
+}
+ol,
+ul {
+  list-style: none;
+}
+blockquote,
+q {
+  quotes: none;
+}
+blockquote:before,
+blockquote:after,
+q:before,
+q:after {
+  content: '';
+  content: none;
+}
+table {
+  border-collapse: collapse;
+  border-spacing: 0;
+}
diff --git a/src/less/normalize.less b/src/less/normalize.less
deleted file mode 100644
index baf3cb1df..000000000
--- a/src/less/normalize.less
+++ /dev/null
@@ -1,231 +0,0 @@
-/*! normalize.css v1.0.0 | MIT License | git.io/normalize */
-
-article,
-aside,
-details,
-figcaption,
-figure,
-footer,
-header,
-hgroup,
-nav,
-section,
-summary {
-  display: block
-}
-audio,
-canvas,
-video {
-  display: inline-block;
-  *display: inline;
-  *zoom: 1
-}
-audio:not([controls]) {
-  display: none;
-  height: 0
-}
-[hidden] {
-  display: none
-}
-html {
-  font-size: 100%;
-  -webkit-text-size-adjust: 100%;
-  -ms-text-size-adjust: 100%
-}
-html,
-button,
-input,
-select,
-textarea {
-  font-family: sans-serif
-}
-body {
-  margin: 0
-}
-a:focus {
-  outline: thin dotted
-}
-a:active,
-a:hover {
-  outline: 0
-}
-h1 {
-  font-size: 2em;
-  margin: .67em 0
-}
-h2 {
-  font-size: 1.5em;
-  margin: .83em 0
-}
-h3 {
-  font-size: 1.17em;
-  margin: 1em 0
-}
-h4 {
-  font-size: 1em;
-  margin: 1.33em 0
-}
-h5 {
-  font-size: .83em;
-  margin: 1.67em 0
-}
-h6 {
-  font-size: .75em;
-  margin: 2.33em 0
-}
-abbr[title] {
-  border-bottom: 1px dotted
-}
-b,
-strong {
-  font-weight: bold
-}
-blockquote {
-  margin: 1em 40px
-}
-dfn {
-  font-style: italic
-}
-mark {
-  background: #ff0;
-  color: #000
-}
-p,
-pre {
-  margin: 1em 0
-}
-code,
-kbd,
-pre,
-samp {
-  font-family: monospace, serif;
-  _font-family: 'courier new', monospace;
-  font-size: 1em
-}
-pre {
-  white-space: pre;
-  white-space: pre-wrap;
-  word-wrap: break-word
-}
-q {
-  quotes: none
-}
-q:before,
-q:after {
-  content: '';
-  content: none
-}
-small {
-  font-size: 75%
-}
-sub,
-sup {
-  font-size: 75%;
-  line-height: 0;
-  position: relative;
-  vertical-align: baseline
-}
-sup {
-  top: -0.5em
-}
-sub {
-  bottom: -0.25em
-}
-dl,
-menu,
-ol,
-ul {
-  margin: 1em 0
-}
-dd {
-  margin: 0 0 0 40px
-}
-menu,
-ol,
-ul {
-  padding: 0 0 0 40px
-}
-nav ul,
-nav ol {
-  list-style: none;
-  list-style-image: none
-}
-img {
-  border: 0;
-  -ms-interpolation-mode: bicubic
-}
-svg:not(:root) {
-  overflow: hidden
-}
-figure {
-  margin: 0
-}
-form {
-  margin: 0
-}
-fieldset {
-  border: 1px solid #c0c0c0;
-  margin: 0 2px;
-  padding: .35em .625em .75em
-}
-legend {
-  border: 0;
-  padding: 0;
-  white-space: normal;
-  *margin-left: -7px
-}
-button,
-input,
-select,
-textarea {
-  font-size: 100%;
-  margin: 0;
-  vertical-align: baseline;
-  *vertical-align: middle
-}
-button,
-input {
-  line-height: normal
-}
-button,
-html input[type="button"],
-input[type="reset"],
-input[type="submit"] {
-  -webkit-appearance: button;
-  cursor: pointer;
-  *overflow: visible
-}
-button[disabled],
-input[disabled] {
-  cursor: default
-}
-input[type="checkbox"],
-input[type="radio"] {
-  box-sizing: border-box;
-  padding: 0;
-  *height: 13px;
-  *width: 13px
-}
-input[type="search"] {
-  -webkit-appearance: textfield;
-  -moz-box-sizing: content-box;
-  -webkit-box-sizing: content-box;
-  box-sizing: content-box
-}
-input[type="search"]::-webkit-search-cancel-button,
-input[type="search"]::-webkit-search-decoration {
-  -webkit-appearance: none
-}
-button::-moz-focus-inner,
-input::-moz-focus-inner {
-  border: 0;
-  padding: 0
-}
-textarea {
-  overflow: auto;
-  vertical-align: top
-}
-table {
-  border-collapse: collapse;
-  border-spacing: 0
-}
\ No newline at end of file
diff --git a/src/less/reset.less b/src/less/reset.less
new file mode 100644
index 000000000..3df61e8d9
--- /dev/null
+++ b/src/less/reset.less
@@ -0,0 +1,48 @@
+/* http://meyerweb.com/eric/tools/css/reset/
+   v2.0 | 20110126
+   License: none (public domain)
+*/
+
+html, body, div, span, applet, object, iframe,
+h1, h2, h3, h4, h5, h6, p, blockquote, pre,
+a, abbr, acronym, address, big, cite, code,
+del, dfn, em, img, ins, kbd, q, s, samp,
+small, strike, strong, sub, sup, tt, var,
+b, u, i, center,
+dl, dt, dd, ol, ul, li,
+fieldset, form, label, legend,
+table, caption, tbody, tfoot, thead, tr, th, td,
+article, aside, canvas, details, embed,
+figure, figcaption, footer, header, hgroup,
+menu, nav, output, ruby, section, summary,
+time, mark, audio, video {
+  margin: 0;
+  padding: 0;
+  border: 0;
+  font-size: 100%;
+  font: inherit;
+  vertical-align: baseline;
+}
+/* HTML5 display-role reset for older browsers */
+article, aside, details, figcaption, figure,
+footer, header, hgroup, menu, nav, section {
+  display: block;
+}
+body {
+  line-height: 1;
+}
+ol, ul {
+  list-style: none;
+}
+blockquote, q {
+  quotes: none;
+}
+blockquote:before, blockquote:after,
+q:before, q:after {
+  content: '';
+  content: none;
+}
+table {
+  border-collapse: collapse;
+  border-spacing: 0;
+}
\ No newline at end of file