JSFiddle - React, Tailwind, and code Playground

HTML

<link rel="stylesheet" href="http://twitter.github.com/bootstrap/assets/css/bootstrap.css">
<div class="container">
<div class="row available">
    <div class="sizes span2 ">
        <img src="http://dummyimage.com/100x25/000/fff">
        <h3>Name</h3>
        <p>Text</p>
    </div>
    <div class="sizes span2 offset2">
        <img src="http://dummyimage.com/100x50/000/fff">
        <h3>Name</h3>
        <p>Text</p>
    </div>
    <div class="sizes span2 offset4">
        <img src="http://dummyimage.com/100x100/000/fff">
        <h3>Name</h3>
        <p>Text</p>
    </div>
    <div class="sizes span2 offset6">
        <img src="http://dummyimage.com/100x50/000/fff">
        <h3>Name</h3>
        <p>Text</p>
    </div>
</div>
</div>

CSS

/*.available{position:relative;}*/
.sizes{position:absolute;bottom:0}