JSFiddle - React, Tailwind, and code Playground
HTML
<div class='parent'>
<div class='child'>
</div>
</div>
<div class='parent' style='display:none'>
<div class='child'>
</div>
</div>
JavaScript
document.querySelector(".parent:not([style='display:none']) .child").innerHTML = '<p>The parent div is visible.</p>'