title: Triggering popup on load using CSS3
body: <p>I have looked for answer in every thread from past and I cannot find it. I have problem with triggering popup. I used some online tutorials to make popup window. I successfully made it, but only way to trigger it is on click. Like this:</p>
  
  <p><code>&lt;a href="#openModal"&gt;Open Modal&lt;/a&gt;
  &lt;div id="openModal" class="modalDialog"&gt;</code></p>
  
  <p>I checked <a href="https://stackoverflow.com/questions/16126788/how-to-auto-popup-a-css3-modal-window-when-page-loads">this</a> thread but it's not working for me.</p>