diff --git a/source/less/_header.less b/source/less/_header.less
index 01880df..86d9d67 100755
--- a/source/less/_header.less
+++ b/source/less/_header.less
@@ -73,7 +73,11 @@
 			left: 0;
 			bottom: 0;
 			width: 0;
-			height: 2px;
+			height: 4px;
+            border-radius: 4px;
+            &:hover{
+                height: 8px;
+            }
 		}
 	}
 	.switcher{