Click event on input[type=checkbox] not working in ios 10.1.1/ iphone for php web pages

Added html like that on page, but click events not working on that, In firefox & chrome it is working fine but in ios it is not working.

<ul id="gallery">
        <li class="test">
           <label for="test">Test</label> 
           <input class="testClass" type="checkbox" id="test" name="addcheck[]" value="1"/>
        </li>
        <li class="new"> 
           <label for="new">New</label> 
           <input class="testClass" type="checkbox" id="new" name="addcheck[]" value="2"/>
        </li>
</ul>