JSFiddle - React, Tailwind, and code Playground

HTML

<ul id="lst">
    <li>1</li>
    <li>2</li>
    <li>3</li>
</ul>
<div id="id2">Kuku</div>

CSS

#lst li {
       float: left;
}

#id2 {
    width:100px;
    height:100px;
    border:1px solid #000;
}