JSFiddle - React, Tailwind, and code Playground

HTML

<link rel="stylesheet" href="http://netdna.bootstrapcdn.com/twitter-bootstrap/2.3.2/css/bootstrap-combined.no-icons.min.css">
<link rel="stylesheet" href="http://netdna.bootstrapcdn.com/font-awesome/3.2.1/css/font-awesome.min.css">

<div class='btn'>
    <i class='icon icon-2x icon-camera pull-left nomargin'></i>
    <p>hello world</p>
</div>

CSS

div.btn {

    display: table;
    margin: 60px;
    vertical-align: middle;
}

div.btn p, div.btn i {
    display: table-cell;
    vertical-align: middle;
}
div.btn i.icon.icon-2x.nomargin {
    margin-top: 0;
}