JSFiddle - React, Tailwind, and code Playground

by firegroove

HTML

<ul>
    <li><a>First</a></li>
    <li><a>Second</a></li>
    <li><a>Third</a></li>
</ul>

CSS

li {
    background: red;
}

a {
    position: relative;
    z-index: 1;
}

a:after {
    content: "";
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 100%;
    transform: scaleY(0);
    transform-origin: bottom center;
    background: blue;
    z-index: -1;
    transition: transform 0.3s;
}

a:hover::after {
    transform: scaleY(1);
}

a:hover{
  color:white;
}