JSFiddle - React, Tailwind, and code Playground

HTML

<a href="/">
    <span></span>
</a>

CSS

a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 50%;
    height: 150px;
    border: 1px solid blue;
}

a span {
    display: block;
    width: 50px;
    height: 50px;
    background: green;
    border: 1px solid green;
}