Conditional Comments for IE
15
Not really a hack, but rather a workaround for layout problems with IE.
Conditional
Conditional
<!--[if IE]>
<style type="text/css">
.yourclass {
width:400px;
}
<![endif]-->
<!--[if IE gte 5.5]>
(If Internet Explorer greater than or equal to version 5.5.)
you can also use lt, lte, gte and ! (for 'not') 





lt - less than
gt - greater than
gte - greater than or equal
I like to use @import "style.css"; inside the comment