[class*="span"]{float:left;min-height:1px;margin-left:20px}.span12{width:940px}.span11{width:860px}.span10{width:780px}.span9{width:700px}
.span8{width:620px}.span7{width:540px}.span6{width:460px}.span5{width:380px}.span4{width:300px}.span3{width:220px}.span2{width:140px}.span1{width:60px}
[class*="span"] img{max-width:100%;height:auto}