diff --git a/src/less/base/view/popupview.less b/src/less/base/view/popupview.less
index 7d55fab96..810293c4b 100644
--- a/src/less/base/view/popupview.less
+++ b/src/less/base/view/popupview.less
@@ -43,3 +43,9 @@
     .box-shadow(0 1px 5px 0, fade(@background-color-normal-theme-dark, 80));
   }
 }
+
+.hack {
+  .bi-popup-view {
+    position: -ms-page !important;
+  }
+}
\ No newline at end of file
diff --git a/src/less/widget/downlist/combo.downlist.less b/src/less/widget/downlist/combo.downlist.less
index 59878495b..c8b5e3112 100644
--- a/src/less/widget/downlist/combo.downlist.less
+++ b/src/less/widget/downlist/combo.downlist.less
@@ -1,9 +1,5 @@
 @import "../../index";
 
 .bi-down-list-combo {
-    &.hack {
-        .bi-popup-view {
-            position: -ms-page !important;
-        }
-    }
+
 }
\ No newline at end of file