Update style.css

style.css

@@ -15,3 +15,6 @@ h1 {
   margin: auto;
   padding-top: 1.5rem;
 }
+
+button { background-color: #4CAF50; color: white; border: none; padding: 10px 20px; text-align: center; text-decoration: none; display: inline-block; font-size: 16px; margin: 4px 2px; cursor: pointer; border-radius: 12px;}
+textarea { border-radius: 5px; }