diff --git a/css/common.css b/css/common.css
index 248b83b..39edb19 100644
--- a/css/common.css
+++ b/css/common.css
@@ -119,7 +119,7 @@ body {
     border-top: none;
   }
   100% {
-    border-top: none;
+    border-top: 1px solid #c4c7ce;
     border-width: 1px;
     height: auto;
   }
diff --git a/css/common.less b/css/common.less
index 2a70f82..76efbde 100644
--- a/css/common.less
+++ b/css/common.less
@@ -140,7 +140,7 @@ body {
                 }
 
                 100% {
-                    border-top: none;
+                    border-top: 1px solid #c4c7ce;
                     border-width: 1px;
                     height: auto;
                 }