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

* {
        box-sizing: border-box;
    }

    /* 
        This is used to prevent margin collapse 
        due to floating
    */
    
    .container {
        display: table;
        width: 100%;
    }
    
    .container > div {
        float: left;
        width: 33.3%;
        outline: 1px solid red;
    }

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