JSFiddle - React, Tailwind, and code Playground

HTML

<div class="inline">Left one</div><div class="inline">Right one</div>

<div id="separator">--- I'm a separator ---</div>

<div class="inline">Left one</div>
<div class="inline">Right one</div>

CSS

div.inline {
    display: inline-block;
    width: 50%;
    outline: solid 1px #F00;
}

div#separator {
    padding: 5px;
}