diff --git a/src/layouts/indexLayout.less b/src/layouts/indexLayout.less
index 2e6dd6d..300f3e7 100644
--- a/src/layouts/indexLayout.less
+++ b/src/layouts/indexLayout.less
@@ -12,7 +12,7 @@
     display: inline-block;
     vertical-align: top;
     height: 100%;
-    width: calc(100% - 48px);
+    width: 100%;
     background-color: #f6f6f6;
   }
 }
@@ -26,6 +26,9 @@
   z-index: 1;
   height: 100%;
   flex: none;
+  ~ .content {
+    width: calc(100% - 48px);
+  }
   .navItem {
     display: block;
     width: 32px;