JSFiddle - React, Tailwind, and code Playground

HTML

<div class="span-half">abc</div>
<div class="span-half">abc</div>
<div class="span-half">abc</div>
<div class="span-half">abc</div>
<div class="span-half">abc</div>
<div class="span-half">abc</div>
<div class="span-half">abc</div>
<div class="span-half">abc</div>
<div class="span-half">abc</div>

CSS

.span-half {
    background-color: #fef;
    float: left;
    width: 50%;
}