A set of SASS mixins
* {
-webkit-box-sizing: border-box; /* Safari */
-moz-box-sizing: border-box; /* Firefox */
box-sizing: border-box;
}
<!--[if lt IE 7]> <html class="no-js lt-ie9 lt-ie8 lt-ie7"> <![endif]-->
<!--[if IE 7]> <html class="no-js lt-ie9 lt-ie8"> <![endif]-->
<!--[if IE 8]> <html class="no-js lt-ie9"> <![endif]-->
<!--[if gt IE 8]><!--> <html class="no-js"> <!--<![endif]-->
@include sizes('div', 200px, 270px, 20px, 2px);
@include vcenter('div');