JSFiddle - React, Tailwind, and code Playground

HTML

<div class="photo"><img src="http://tribulationsparisiennes.hautetfort.com/media/00/00/3753014239.jpg" alt="" /></div>

CSS

.photo {
    width: 400px;
    position: relative;
    margin: 20px auto;
    border: 5px solid #DBDBDB;
}
.photo:before {
    content: '';
    position: absolute;
    width: 200px;
    height: 100px;
    top: -5px;
    left: -5px;
    background: #FF0000;
}
.photo:after {
    content: '';
    position: absolute;
    width: 200px;
    height: 100px;
    bottom: -5px;
    right: -5px;
    background: #FF0000;
}
.photo img {
    display: block;
    width: 100%;
    position: relative;
    z-index: 1;
}