JSFiddle - React, Tailwind, and code Playground

HTML

<ul>
    <li>Item 1</li>
    <li>Item 2</li>
    <li>Item 3</li>
    <li>Item 4</li>
</ul>

CSS

ul {
    width: 200px;
}

ul li {
    width: 100px;   
    margin: 0;
    padding: 0;   
    float: left;
}