layout The header, colmask and footer divs are 100% wide and stacked vertically one after the other. Colmid is inside colmask and colleft is inside colmid. The three column content divs (col1, col2 & col3) are inside colleft. Notice that the main content column (col1) comes before the other columns.

body {
	border:0;			/* This removes the border around the viewport in old versions of IE */
	min-width:600px;	/* Minimum width of layout - remove line if not required */

The Perfect three Columns Liquid Layout