diff --git a/src/style/sidebar.scss b/src/style/sidebar.scss
index 353dd9c7e..026394aaf 100644
--- a/src/style/sidebar.scss
+++ b/src/style/sidebar.scss
@@ -23,16 +23,6 @@
     margin-left: $sideBarWidth;
     position: relative;
     background: #f0f2f5;
-    @media screen and (min-width: 150px) and (max-width: 420px) {
-      .app-main .el-scrollbar__view:first-child {
-        overflow-y: hidden;
-      }
-    }
-    @media screen and (min-width: 420px) {
-      .app-main .el-scrollbar__view:first-child {
-        overflow: hidden;
-      }
-    }
   }
 
   .fixed-header {