JSFiddle - React, Tailwind, and code Playground

HTML

<div id="wrapper">
    <div id="inner">
        <div class="item"></div>
        <div class="item"></div>
        <div class="item"></div>
        <div class="item"></div>
    </div>
</div>

CSS

#wrapper{
    width:500px;
    border:solid 1px #444;
    oveflow:hidden;
    padding:10px 0 0;
}
#inner{
    clear:both;
    overflow:hidden;
    width:520px;
}
.item{
    float:left;
    width:240px;
    height:200px;
    margin-right:16px;
    margin-bottom:10px;
    border:solid 1px #bf3d3d;
}