Fixed accessibility issues with viewing options

docs/index.html

@@ -143,7 +143,7 @@
                         </ol>
                         <div class="output">
                             <span>Output</span>
-                            <select class="normal" data-callback="hello" data-placeholder="Select an option">
+                            <select class="normal"  data-placeholder="Select an option">
 							<option value="pancakes">Pancakes</option>
 							<option value="tosai">Tosai</option>
 							<option value="roti">Roti Canai</option>