JSFiddle - React, Tailwind, and code Playground

HTML

<div id="container">
    <div id="head">Unknow content</div>
    <div id="body">Unknow content</div>
</div>

CSS

#container{
	height: 500px;
    background: #FFC863;
    padding: 2px 10px;
}
#head{
    background: #64B8FF;
    margin-bottom: 2px;
}
#body{
    background: #EEFF61;
    height: 100%;
}