JSFiddle - React, Tailwind, and code Playground

by 규연 황

HTML

<div class="num">3</div>

CSS

body {
  background: #000;
  padding: 30px;
}
.num {
  display: block;
  width: 90px;
  height: 90px;
  text-align: center;
  border-radius: 50%;
  box-sizing: border-box;
  font-size: 30px;
  line-height: 64px;
  color: #060d31;
  border: 13px solid rgba(255,255,255,.2);
  background-color: #fff;
  background-origin: padding-box;
  background-clip: padding-box;
}