JSFiddle - React, Tailwind, and code Playground

HTML

<link rel="stylesheet" href="http://code.jquery.com/mobile/1.4.4/jquery.mobile-1.4.4.min.css">
<script src="http://code.jquery.com/jquery-1.11.1.min.js"></script>
<script src="http://code.jquery.com/mobile/1.4.4/jquery.mobile-1.4.4.min.js"></script>
<div class="ui-grid-a">
    <div class="ui-block-a" style="width: 70%;"> 
        <a href="#" class="ui-shadow ui-btn ui-corner-all ui-btn-inline">this</a>
        <a href="#" class="ui-shadow ui-btn ui-corner-all ui-btn-inline">is</a>
        <a href="#" class="ui-shadow ui-btn ui-corner-all ui-btn-inline">a</a>
        <a href="#" class="ui-shadow ui-btn ui-corner-all ui-btn-inline">test</a>
        <a href="#" class="ui-shadow ui-btn ui-corner-all ui-btn-inline">js</a>
    </div>
    <div class="ui-block-b" style="width: 30%;"> 
        <a href="#" class="ui-shadow ui-btn ui-corner-all ui-btn-inline">7</a>
        <a href="#" class="ui-shadow ui-btn ui-corner-all ui-btn-inline">8</a>
        <a href="#" class="ui-shadow ui-btn ui-corner-all ui-btn-inline">9</a>
    </div>
</div>

CSS

.ui-block-a { width: 70%; !important }
.ui-block-b { width: 30%; !important }