JSFiddle - React, Tailwind, and code Playground

by Felis Catus

HTML

<div class="asterisk">

</div>

CSS

body {
    background: #aaa;
}
.asterisk {
    width: 15px;
    height: 15px;
    border-width: 8px;
    border-color: white;
    border-style: dotted;
    border-radius: 18px;
    position: relative;
    box-sizing: content-box;
}
.asterisk:after {
    position: absolute;
    top:0;
    bottom: 0;
    right: 0;
    left: 0;
    display: block;
    background: transparent;
    box-shadow: 0 0 0 3px #fff;
    content: '';
    border-radius: 18px;
    border: 3px solid white;
    box-sizing: content-box;
}