JSFiddle - React, Tailwind, and code Playground

HTML

<div class="circle">
    <img src="http://placeimg.com/200/200/any" />
</div>

CSS

.circle {
    border-radius: 50%;
    display: inline-block;
}
.circle img {
    border-radius: 50%;
    display: block;
    opacity: 0.4;
    filter: alpha(opacity=40);
}