diff --git a/4.css b/4.css
index 76e89a0..51d9134 100644
--- a/4.css
+++ b/4.css
@@ -23,14 +23,15 @@ a.btn{
 	text-decoration: none;
 	cursor: pointer;
 	margin: 15px;
-	border: 2px solid #ffffff;
+	border: 3px solid #ffffff;
+	background-color: #ffffff;
   	border-radius: 15px;
 }
 a.btn:hover, .btn:focus {
-  border: 2px solid #0077ff;
-  border-radius: 15px;
-  box-shadow: 0 1px 4px #000;
-  text-decoration: none;
+  	border: 3px solid #0077ff;
+  	background-color: #0077ff;
+  	border-radius: 15px;
+  	text-decoration: none;
 }
 
 .spacer{