diff --git a/4.css b/4.css
index 208f5e5..24b437b 100644
--- a/4.css
+++ b/4.css
@@ -20,6 +20,7 @@ a.pan:hover{
 }
 a.btn{
   	transition: 0.1s all linear;
+	text-decoration: none;
 	cursor: pointer;
 }