JSFiddle - React, Tailwind, and code Playground

HTML

<div class="red">
    <div class="blue">content1</div>
    <div class="blue">content2</div>
    <div class="blue">content3</div>
    <div class="blue">content4</div>
    <div class="blue">content5</div>
    <div class="blue">content6</div>
</div>

CSS

.red {
    width:650px;
    height:1000px;
    background:red;
    font-size: 0;
}

.blue {
    height:200px;
    width: 20%;
    background:blue;
    display:inline-block;
    margin: 4% 0 0 4%;
}