JSFiddle - React, Tailwind, and code Playground

HTML

<link rel="stylesheet" href="//netdna.bootstrapcdn.com/bootstrap/2.3.2/css/bootstrap.css">
<ul class="thumbnails">
    <li class="span4">
        <a class="thumbnail" href="#">
            <img src="http://placehold.it/300x200" alt="300x200" />                
            <h4 class="caption">This is my image</h4>
        </a>
    </li>
</ul>

CSS

a.thumbnail:hover {
    text-decoration: none;
}