JSFiddle - React, Tailwind, and code Playground

HTML

<div id="container">
    <div class="elem"></div>
    <div class="elem"></div>
    <div class="elem"></div>
    <div class="elem"></div>
    <div class="elem"></div>
</div>

CSS

#container {
    background-color: grey;
    width: 200px;
    height: 200px; 
}

.elem {
    background-color: orange;
    width: 50px;
    height: 50px; 
    margin: 6px;
    float: left;
}