JSFiddle - React, Tailwind, and code Playground
by master1991
HTML
<div class="a">
<div class="b">
</div>
</div>
CSS
div.a{
height: 100px;
width: 100px;
border: solid black 1px;
}
div.b{
height: 50px;
width: 50px;
border: solid black 1px;
}
JavaScript
$(document).ready(function(){
$(".a").click(function(e) {
$(".b", this).css("background-color","red");
});
});