add buttons

Author: Supravisor

index.html

@@ -22,5 +22,12 @@ <h2>Diff checker</h2>
         <textarea id="original">Code test 32 ...</textarea>
     </div>
 
+    <div>
+      <button>Hide Original</button>
+      <button>Hide Compare</button>
+      <button>Diff</button>
+</div>
+
+    </div>
 </body>
 </html>