JSFiddle - React, Tailwind, and code Playground

HTML

<div class="avatar">
    <img src="http://www.stockazoo.com/uploads/3/5/4/5/3545172/5579090_orig.jpg" />
</div>

CSS

div.avatar {
    border-radius:50%;
    overflow:hidden;
    width:100px;
    height:100px;
    border:1px solid #ccc;
}
div.avatar img {   
    height:100%;
}