JSFiddle - React, Tailwind, and code Playground

HTML

<div class="container">
    <ul>
        <li>Item 1</li>
        <li>Item 1</li>
        <li>Item 1</li>
        <li>Item 1</li>
        <li>Item 1</li>
        <li class="clear"></li>
    </ul>
</div>

CSS

.container{width:100%; background-color:#CCC; height:20px;}
ul{display:block; margin:0 auto;}
li{float:left; display:block;}

.clear{clear:both;}