JSFiddle - React, Tailwind, and code Playground

HTML

<div class="content">I have some content</div>
<div class="content">I have some content</div>
<div class="content">I have some content</div>
<div class="content">I have some content</div>
<div class="content">I have some content</div>
<div class="content">I have some content</div>
<div class="content">I have some content</div>
<div class="content">I have some content</div>
<div class="content">I have some content</div>
<div class="content">I have some content</div>
<div class="content">I have some content</div>
<div class="content">I have some content</div>
<div class="content">I have some content</div>
<div class="content">I have some content</div>
<div class="content">I have some content</div>
<div class="content">I have some content</div>
<div class="content">I have some content</div>
<div class="content">I have some content</div>
<div class="content">I have some content</div>
<div class="content">I have some content</div>
<div class="content">I have some content</div>
<div class="content">I have some content</div>

CSS

.content {
    margin: 1px;
    width: 200px;
    height: 400px;
    border: 1px solid black;
    float: left;
    background-color: gray;
}