JSFiddle - React, Tailwind, and code Playground
by bg100
HTML
<div class="parent">
<div>Save</div>
<table>
<tr>
<td>My table</td>
</tr>
</table>
</div>
<br />
<br />
<div class="parent">
<div>Save</div>
</div>
CSS
.parent :last-child { border-radius: 1em; }
.parent > table { border-radius: 0 !important; }
JavaScript
$(".parent > *").css({border: "1px solid blue", "font-size": "2em"});