JSFiddle - React, Tailwind, and code Playground

HTML

<div class="gallery"><a href="http://www.flickr.com/photos/28misguidedsouls/" style="background-image: url(http://farm7.staticflickr.com/6134/6203825072_ca04358960_t.jpg);"></a><a href="http://www.flickr.com/photos/arenamontanus/" style="background-image: url(http://farm1.staticflickr.com/194/510119553_78e0cdd1bd_t.jpg);"></a><a href="http://www.flickr.com/photos/mikleman/" style="background-image: url(http://farm4.staticflickr.com/3105/3202087574_8d980eaffb_t.jpg);"></a><a href="http://www.flickr.com/photos/mikleman/" style="background-image: url(http://farm4.staticflickr.com/3105/3202087574_8d980eaffb_t.jpg);"></a><a href="http://www.flickr.com/photos/28misguidedsouls/" style="background-image: url(http://farm7.staticflickr.com/6134/6203825072_ca04358960_t.jpg);"></a><a href="http://www.flickr.com/photos/arenamontanus/" style="background-image: url(http://farm1.staticflickr.com/194/510119553_78e0cdd1bd_t.jpg);"></a><a href="http://www.flickr.com/photos/arenamontanus/" style="background-image: url(http://farm1.staticflickr.com/194/510119553_78e0cdd1bd_t.jpg);"></a><a href="http://www.flickr.com/photos/mikleman/" style="background-image: url(http://farm4.staticflickr.com/3105/3202087574_8d980eaffb_t.jpg);"></a><a href="http://www.flickr.com/photos/28misguidedsouls/" style="background-image: url(http://farm7.staticflickr.com/6134/6203825072_ca04358960_t.jpg);"></a></div>

CSS

.gallery
{
    width: 195px;
    line-height: 0;
}

.gallery a
{
    display: inline-block;
    height: 65px;
    width: 65px;
    overflow: hidden;
    background-position: center;
}