JSFiddle - React, Tailwind, and code Playground

by Sub Lines

HTML

<span class="circle">test</span>

CSS

body{
    background:green;
}

.circle{
    display:block;
    width: 200px;
    height: 100px;
    overflow:hidden;
    position:relative;
}
.circle:after{
    content:'';
    width: 200px;
    height: 200px;
    -moz-border-radius: 50%;
    -webkit-border-radius: 50%;
    border-radius: 50%;
    background:rgba(0,0,0,0);
    position:absolute;
    top:-310px;
    left:-200px;
    border:200px solid white;
}