JSFiddle - React, Tailwind, and code Playground

HTML

<div id="wrapper">
    <div id="test">
        test
    </div>
</div>

CSS

#wrapper{
    width:90%;
    height:100px;
    background-color:#bbbbbb;
    margin: 0 auto;
}
#test{
    margin: 10px 5px;
}