JSFiddle - React, Tailwind, and code Playground

HTML

<div class="container">
    <div class="fooContainer">
        <div class="foo">content</div>
    </div>
    <div class="fooContainer">
        <div class="foo">bit more content</div>
    </div>
    <div class="fooContainer">
        <div class="foo">
           Very much more content
        </div>
    </div>
</div>

CSS

.container {
    display: -webkit-flex;
    display: fex;
    -webkit-flex-direction: row;
    flex-direction: row;
}

.container > div {
    -webkit-flex: 1 1 33%;
    outline: 1px solid red;
}

.container > div + div {
    margin-left: 10px;
}