JSFiddle - React, Tailwind, and code Playground

HTML

<input type="text" style="width: 200px;" />
<ul id="underbox">
    <li>Test</li>
    <li>Next</li>
</ul>

CSS

body{
    text-align: center;
}
#underbox li{
    display: inline-block;
    text-decoration: underline;
}
ul#underbox {
    padding: 0;
    list-style-type: none;
    margin:0;
}