JSFiddle - React, Tailwind, and code Playground

HTML

<div class="image-cropper">
    <div class="rounded" style="background-image:url('http://www.electricvelocity.com.au/Upload/Blogs/smart-e-bike-side_2.jpg')"></div>
</div>

CSS

.image-cropper {
    max-width: 100px;
    height: auto;
    position: relative;
    overflow: hidden;
}
.rounded {
    display: block;
    margin: 0 auto;
    height: 100px;
    width: 100px;
    -webkit-border-radius: 50%;
    -moz-border-radius: 50%;
    -ms-border-radius: 50%;
    -o-border-radius: 50%;
    border-radius: 50%;
    background:center no-repeat;
    background-size:cover;
}