Use iframe to load your html file, example:
<div style="position: relative;">
<a target="_blank" href="http://exampledomain.com/" style="position:absolute; top:0; left:0; display:inline-block; width:300px; height:250px; z-index:10;"> </a>
<iframe src="https://exampledomain.vn/www/html5/garena/3.gif" width="300" height="250" frameborder="0" scrolling="No"></iframe>
</div>
With this, you can tracking your html5 ads too.
P/S: width, height must fix your zone size.