diff --git a/dev.less b/dev.less
index becd098..45fb2d8 100644
--- a/dev.less
+++ b/dev.less
@@ -27,7 +27,7 @@ body::before {
 	font-weight: bold;
 	z-index: 9999;
 }
-body:before:hover{
+body:hover:before{
 	background-color: #fff;
 }