JSFiddle - React, Tailwind, and code Playground

HTML

<ul>
    <li><a href = "#">short</a></li>
    <li><a href = "#">want center</a></li>
    <li><a href = "#">loooooooooooooooooong</a></li>
</ul>

CSS

ul {
    display: flex;
    justify-content: center;
    width: 100%;
    background-color: purple;
}
li {
    background-color: red;
    border: 5px solid blue;
    list-style: none;
}