Update app.css

app.css

@@ -34,6 +34,38 @@ display:none;
 button[onclick*="()"] {
 cursor:pointer;
 }
+label {
+display: block;
+}
+input, button, select, textarea {
+font-family: inherit;
+font-size: inherit;
+padding: 0.4em;
+margin: 0 0 0.5em 0;
+box-sizing: border-box;
+border: 1px solid #ccc;
+border-radius: 2px;
+}
+input:disabled {
+color: #ccc;
+}
+input[type="range"] {
+height: 0;
+}
+button {
+color: #333;
+background-color: #f4f4f4;
+outline: none;
+}
+button:disabled {
+color: #999;
+}
+button:not(:disabled):active {
+background-color: #ddd;
+}
+button:focus {
+border-color: #666;
+}
 @media (max-width: 700px) {
 article {
 margin: 0 auto;