JSFiddle - React, Tailwind, and code Playground

HTML

<a href="http://presswork.me/themes/socialstock/" class="img-shadow">
    <img src="http://presswork.me/wp-content/uploads/2011/09/socialstock_home.jpg" alt="" />
</a>

CSS

.img-shadow {
    position: relative;
    max-width: 100%;
    float: left;
    
    }
 
    .img-shadow::before {
        content: "";
        position: absolute;
        top: 0;
        bottom: 0;
        left: 0;
        right: 0;
        box-shadow: inset 0 0 8px rgba(0,0,0,.6);
        -moz-box-shadow: inset 0 0 8px rgba(0,0,0,.6);
        -webkit-box-shadow: inset 0 0 8px rgba(0,0,0,.6);
       } 
 
.img-shadow img {
    float: left;
    }