JSFiddle - React, Tailwind, and code Playground

HTML

<div class="layout">
    <div class="columnsContainer">
        <div class="column">
            First column with a big 
            <br />big<br />big<br />big<br />
            height
        </div>
        <div class="column">
            Second column
        </div>
    </div>
</div>

CSS

.layout {
    display:table;
	width:80%;
    border-collapse:separate;
    border-spacing:50px;
	}
.layout .columnsContainer { display:table-row }
.layout .columnsContainer .column {
	display:table-cell;
    max-width: 30%;
    max-height: 30%;
    padding-left: 2%;
    padding-right: 2%;
    padding-bottom: 2%;
    background-color: #ecf0f1;
    color: grey;
    border-radius: 5px;
    border-bottom: 2px solid grey;
	}