JSFiddle - React, Tailwind, and code Playground

HTML

<div class="floats">
    <div class="box">
        asfasdfas
    </div>
        <div class="box">
        asdfasf<br>asfasdfs<br>asfasdfs<br>asfasdfs<br>asfasdfs<br>asfasdfs<br>asfasdfs<br>asfasdfs<br>
    </div>
        <div class="box">
        asfasdfs<br>asfasdfs<br>asfasdfs<br>
    </div>
        <div class="box">
        asfasdfs<br>asfasdfs<br>asfasdfs<br>asfasdfs<br>
    </div>
</div>

CSS

.box {
    float: left;
    background-color: red;
    color: blue;
}

JavaScript

jQuery(function ($) {
        var heights = [];
        $('.box').each(function () {
                heights.push( $(this).height() );
        }).height(heights.sort().shift() || 0);
});