JSFiddle - React, Tailwind, and code Playground

by flackend

HTML

<div class="top">

    <p>Top</p>

</div>

<div class="btm">
    <div>
        <div class="full-height">
            <p>Bottom</p>
        </div>
    </div>
</div>

CSS

html, body, .full-height {
    height: 100%;
}

.top {
    background: grey;
    height: 100px;
}

.btm {
    display: table
}

.btm > div {
    display: table-row
}

.btm > div > div {
    display: table-cell;
    background: silver
}