Update style.css

style.css

@@ -125,11 +125,10 @@ body {
     background-color: #006400; /* Dark Green */
     color: white;
     cursor: pointer;
-    padding: 0px;
     border-radius: 35%; /* Make it round */
     border: none;
     font-size: 30px;
-    margin: 30px 0;
+    margin: 30px;
     height: 50px;
     width: 50px;
     display: block;