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;
}
<ul id="lst">
<li>1</li>
<li>2</li>
<li>3</li>
</ul>
<div id="id2">Kuku</div>
#lst li {
float: left;
}