JSFiddle - React, Tailwind, and code Playground

HTML

<div class="table">
    <div class="row">
        <div class="cell">
            <img src="http://placehold.it/600x800" />
        </div>
        <div class="cell">
            <img src="http://placehold.it/300x400" />
        </div>
    </div>
</div>

CSS

.table {
    display: table;
    width: 100%;
}
.row {
    display: table-row;
}
.cell {
    display: table-cell;
    vertical-align: middle;
}
.cell img {
    height: 50%;
    width:auto;
}