JSFiddle - React, Tailwind, and code Playground

HTML

<div>
    <br/>
</div>
<div>
    <br/>
    <br/>
</div>
<div>
    <br/>
    <br/>
    <br/>
</div>

CSS

div {
    border: 1px solid red;
    width: 33%;
    float: left;
    box-sizing: border-box;
}

JavaScript

var equalDimension = function (selector, fn) {
        var $elements = $(selector),
            dimensions = $elements.map(function (i) {
                return fn.call($elements.eq(i));
            }),
            maxDimension = Math.max.apply(Math, dimensions);
        fn.call($elements, maxDimension);
    };
    
    equalDimension('div', $.fn.height);