Update static/style.css

static/style.css

@@ -55,6 +55,7 @@ button {
   padding: 10px 20px;
   cursor: pointer;
   border-radius: 5px;
+  animation: gradient-animation 15s ease infinite;
   font-family: 'Kaushan Script', cursive;
   font-size: 1.1em;
   transition: transform 0.2s ease;