JSFiddle - React, Tailwind, and code Playground

HTML

<ul id="Menu">
    <li><a>LINK 1</a></li>
    <li><a>LINK 2</a></li>
    <li><a>LINK 3</a></li>
</ul>

CSS

#Menu li {
    transition: 2s;
}

#Menu li:hover {
    background-color: rgba(255,165,0,0.5);
    color: red;
}