Update style.css

style.css

@@ -46,28 +46,7 @@ button {
   font-size: 20px;
   color: #FFFFFF;
   padding: 8px;
+  border-radius: 8px;
   width: 150px;
   text-align: center;
-  transition-duration: 0.4s;
-  text-decoration: bold;
-}
-
-button:after {
-  content: "";
-  background: #f1f1f1;
-  display: block;
-  position: absolute;
-  padding-top: 300%;
-  padding-left: 350%;
-  margin-left: -20px !important;
-  margin-top: -120%;
-  opacity: 0;
-  transition: all 0.8s
-}
-
-button:active:after {
-  padding: 0;
-  margin: 0;
-  opacity: 1;
-  transition: 0s
 }