JSFiddle - React, Tailwind, and code Playground

HTML

<div class="button_class">
    <a class="link_class" href="http://www.my_link.com">My Link</a>
</div>

CSS

.button_class {
    width:150px;
    padding:5px 7px;
    background-color:#cecece;
    text-align:center;
    -webkit-border-radius:3px;
    -moz-border-radius:3px;
    border-radius:3px;
}

.link_class {
     background-color:yellow;
    display:inline-block;
    width:100%;
    height:100%;
}