JSFiddle - React, Tailwind, and code Playground

HTML

<div class="doughnut"></div>

CSS

.doughnut { 
    border: 10px solid black;
    border-radius: 100%;
    height:150px;
    width:300px;
    border-left: 50px solid transparent;
    border-top: 50px solid transparent;
    border-right: 50px solid transparent;
}