JSFiddle - React, Tailwind, and code Playground

HTML

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

CSS

body, html {
    height: 100%;
    width: 100%;
    margin: 0;
}

.table {
    display: table;
    width: 100%;
    height: 100%;
    background: red;
}

.row {
    display: table-row;
    width: 100%;
    height: 100%;
}

.cell {
    display: table-cell;
    width: 100%;
    height: 100%;
}

.content {
    width: 100%;
    height: 100%;
    background: green;
    padding: 20px;
    box-sizing: border-box;
}