JSFiddle - React, Tailwind, and code Playground

HTML

<link rel="stylesheet" href="//netdna.bootstrapcdn.com/bootstrap/3.0.0/css/bootstrap-glyphicons.css">
Check this out!
<br/> 
<span class="icon-stack">
        <i class="glyphicon glyphicon-unchecked"></i>
        <i class="glyphicon glyphicon-ok"></i>
   </span>

CSS

.icon-stack {
        position: relative;
    }
    .icon-stack .glyphicon {
        position: absolute; 
    }