diff --git a/packages/fes-core/src/views/styles/layout.scss b/packages/fes-core/src/views/styles/layout.scss
index 559a944b..07196b60 100644
--- a/packages/fes-core/src/views/styles/layout.scss
+++ b/packages/fes-core/src/views/styles/layout.scss
@@ -187,7 +187,7 @@ $dark-selected-color: #ffffff;
       left: 0;
       top: 0;
       width: 100%;
-      min-width: 1280px;
+      min-width: 1240px;
       height: 60px;
     }
     .layout-right {
@@ -403,12 +403,12 @@ $dark-selected-color: #ffffff;
   right: 0;
   top: 0;
   bottom: 0;
-  min-width: 1280px;
+  min-width: 1240px;
 }
 
 .layout-right-header {
   width: 100%;
-  min-width: 1280px;
+  min-width: 1240px;
   height: 60px;
   line-height: 60px;
   position: relative;