JSFiddle - React, Tailwind, and code Playground

HTML

<div class="table">
    <div class="row">
        <div class="cell">
            <div class="container">
                <div class="content"></div>
            </div>
        </div>
    </div>
</div>

CSS

* {
    box-sizing: border-box;
}
body {
    position: absolute;
    height: 100%;
    width: 100%;
    margin: 0;
}
.table {
    display: table;
    height: 100%;
    width: 100%;
}
.row {
    display: table-row;
    height: 100%;
}
.cell {
    display: table-cell;
    height: 100%;
    background-color: red;
}
.container {
    height: 100%;
    padding: 50px;
    background-color: lightgrey;
}
.content {
    height: 100%;
    background-color: grey;
}