JSFiddle - React, Tailwind, and code Playground

HTML

<div class="myclass">
    <div>asdasdas</div>
    </div>

JavaScript

$(".myclass").mouseover(function() {
    $(this).find(" > div").css("background-color","red");
}).mouseout(function() {
    $(this).find(" > div").css("background-color","transparent");
});;