One div is fixed (floated) and other fluid (unfloated).
Fix width column.
Fix width column.
Fix width column.
Fix width column.
Fix width column.
Fluid unfloated div. Fluid unfloated div. Fluid unfloated div.
<div style="float:right;width:160px;"> Fix width column. </div> <div style="float:none;margin-right:170px;width:auto;"> <h3>two column fluid</h3> Fluid column. </div>