JSFiddle - React, Tailwind, and code Playground

by kodjoe mambi

HTML

<div id="relatedpostspro_0_1" class="rpp rpp_isotope" style="width:auto;">
    <div class="rpp_container">
        <legend>Related Posts</legend>
        <div>...</div>
        <div>...</div>
        <div>...</div>
    </div>
</div>

JavaScript

$('.rpp_container legend').after('<div class="stripe-line"></div>');