Unholy Grail Layout (Reverse Holy Grail Layout)
Simple

&lt;div style=float:left;&gt;L&lt;/div&gt;&lt;div style=float:right;&gt;R&lt;/div&gt;&lt;div style="width: 100px;margin:0px auto;"&gt;C&lt;/div&gt;



Who said that it needs to be valid html?
Who said that I need a doctype?