JSFiddle - React, Tailwind, and code Playground

HTML

<ul>
    <li><div class="red">Red</div></li>
    <li><div class="green">Green</div></li>
    <li><div class="blue">Blue</div></li>
</ul>

CSS

ul
{
    list-style: none;
    margin: 0 0 0 -15px; /* Note the negative margin */
    padding: 0;
    overflow: hidden;
}

li
{
    float: left;
    width: 33.3333%;
    padding: 0 0 25px 15px;
    box-sizing: border-box;
}

/* Some decorations */
div { padding: 25px 0; color: white; text-align: center; }
div.red { background: red; }
div.green { background: green; }
div.blue { background: blue; }