JSFiddle - React, Tailwind, and code Playground

HTML

<div id = "outer">
    <div class = "box"></div>
    <div class = "box"></div>
    <div class = "box"></div>
    <div class = "box"></div>
    <div class = "box"></div>
</div>

CSS

#outer
{
    display: flex;
    flex-wrap: wrap;
}

.box
{
    background-color: green;
    width: 50px;
    height: 30px;
    margin: 10px;
}