diff --git a/public/themes/admin_default/admin/index/index.html b/public/themes/admin_default/admin/index/index.html
index d572db4af54e3f3942748ee5d0947bee84be801a..8525eebe17c2827c2ca38b367ad6d8105ef6872f 100644
--- a/public/themes/admin_default/admin/index/index.html
+++ b/public/themes/admin_default/admin/index/index.html
@@ -60,6 +60,9 @@
         }
 
         /*----------------导航hack--------------------*/
+        .page-content{
+            height: 100vh;
+        }
     </style>
     <php>
         $_current_admin_id=cmf_get_current_admin_id();