JSFiddle - React, Tailwind, and code Playground
HTML
<div class='contain'>
<a href="#">
<div id="s1" class="sub" onclick="hello('1')">dasdad</div>
</a>
</div>
<div class='contain'>
<a href="#">
<div id="s2" class="sub" onclick="hello('2')">dasdad</div>
</a>
</div>
JavaScript
console.log($('#s1').closest('.contain').height())