JSFiddle - React, Tailwind, and code Playground

HTML

<div id="subject">
    <div id="predicate">
        Read Me!
    </div> 
</div>

CSS

#subject {
    position:fixed;
    top:0px;
    left:0px;
    width:100%;
    height:100%;
}

#predicate {
    position:relative;
    top:50%;
    margin:auto;
    width:140px;
    height:40px;
    background:#b4da55;
}