JSFiddle - React, Tailwind, and code Playground

by Math3w C

HTML

<div class="awp_box awp_box_inner">dum</div>
<div class="awp_box awp_box_inner">dum2</div>
<div class="awp_box awp_box_inner">styled</div>
<div class="awp_stock_container awp_sct" style="max-width: 400px !important;">dum</div>

CSS

.awp_box { width:50%; background-color:#eee; border:1px solid #fff;}
.awp_box.full { width:100%; }

JavaScript

$(document).ready(function(){    
    $('.awp_sct').prev().addClass('full');
});