JSFiddle - React, Tailwind, and code Playground

HTML

<div class="row-fluid">
    <div class="box span3"></div>
    <div class="box span3"></div>
    <div class="box span3"></div>
    <div class="box span3"></div>
 </div>
 <!--[if IE 7]>
<style>
    .row-fluid .span3{
        width:22.80% !important;
    }
</style>
<![endif]-->

CSS

.box{
   border:5px solid #dd0000;
}