<div style="width:40%;padding:0 10px 0 0;float:left;">
Your content for your column #1
Your content for your column #1
Your content for your column #1</div>
<div style="width:40%;padding:0 10px 0 0;float:right;">
Your content for your column #2
Your content for your column #2
Your content for your column #2
</div>
<hr style="clear:both; visibility: hidden;" />