JSFiddle - React, Tailwind, and code Playground

HTML

<section id="featured">
    <article>
        <img src="http://sheepy.me/incoming/images/posts/blog/thumb_tim-burton-pokemans.png" />
    </article>
    <article>
        <img src="http://sheepy.me/incoming/images/posts/blog/thumb_hem-tourniquet.png" />
    </article>
    <article>
        <img src="http://sheepy.me/incoming/images/posts/blog/thumb_hem-tourniquet.png" />
    </article>
    <article>
        <img src="http://sheepy.me/incoming/images/posts/blog/thumb_tim-burton-pokemans.png" />
    </article>
    <article>
        <img src="http://sheepy.me/incoming/images/posts/blog/thumb_tim-burton-pokemans.png" />
    </article>
</section>

CSS

#featured {
    width: 730px;
    padding: 20px;
    -webkit-column-count: 2;
    -webkit-column-gap: 10px;
    -webkit-column-fill: balance;
    -moz-column-count: 2;
    -moz-column-gap: 10px;
    -moz-column-fill: balance;
    column-count: 2;
    column-gap: 10px;
    column-fill: balance;
    background: #7d90a5;
}
article {
    width: 300px;
    display: block;
    background: #344252;
    -webkit-column-break-inside: avoid;
    -moz-column-break-inside: avoid;
    column-break-inside: avoid;
    padding: 10px;
    width: 335px;
    margin-bottom: 20px;
}
article img{
    width: 335px;
    display: block;
}