JSFiddle - React, Tailwind, and code Playground
HTML
<div class="container">
<div class="a"></div>
<div></div>
<div class="b"></div>
<div></div>
</div>CSS
.container { font-size: 0; }
.container div { display: inline-block; width: 100px; height: 30px; background: #000000; font-size: 12px; }
.container div.a { width: 130px; background: #555555; }
.container div.b { width: 70px; background: #333333; }