flexible-fluid-css.css

#wrapper { margin: 0 auto; }
#header {overflow: hidden;}
#container,#content,#primary,#secondary,#tertiary
  {float:left;}
#footer {clear:left;width:100%;}
 
/* Wide ( over 1100px ) */
.wide #container {width:60%;}
.wide #content {width:66%;}
.wide #primary {width:34%;}
.wide #secondary,.wide #tertiary {width:20%;}
 
/* Normal ( over 800px ) */
.normal #container {width:50%;}
.normal #secondary,.normal #tertiary {width:25%;}
 
/* Slim ( over 600px ) */
.slim #container{width:66%;}
.slim #secondary,.slim #tertiary {width:34%;}
 
/* Narrow ( under 600px ) */
.narrow #secondary,.narrow #tertiary {width:50%;}
.narrow #secondary {clear:both;}