JSFiddle - React, Tailwind, and code Playground

HTML

<script src="http://cdnjs.cloudflare.com/ajax/libs/twitter-bootstrap/2.1.0/bootstrap.min.js"></script>
<div class="modal-backdrop"></div>
<button class="btn btn-primary">Toggle backdrop</button>

CSS

@import url('http://twitter.github.com/bootstrap/assets/css/bootstrap.css');

button {
    position: fixed;
    z-index: 10000000;
}

JavaScript

$(document).ready(function() {
    $("button").click(function() {
        $(".modal-backdrop").toggle();
    });
});