JSFiddle - React, Tailwind, and code Playground

HTML

<script src="https://cdnjs.cloudflare.com/ajax/libs/blueimp-md5/2.10.0/js/md5.min.js"></script>
<img id="myimg" src=""/>

JavaScript

var email = "fedeghe@gmail.com",
    size = 80,
    myImage = document.getElementById('myimg');
myImage.src = 'http://www.gravatar.com/avatar/' + md5(email) + '.jpg?s=' + size;