JSFiddle - React, Tailwind, and code Playground

by TheBanana

HTML

<div class="outerDiv">
    <div class="innerDiv"></div>
</div>

CSS

.outerDiv {
    background-color:red;
}
.innerDiv {
    background-color:blue;
}

JavaScript

$(function(){
    $(".outerDiv").css({
        width:"300px",
        height:"300px"
    }); 
    
    $(".innerDiv").css({
        width:"100%",
        height:"50%"
    }); 
});