JSFiddle - React, Tailwind, and code Playground

by Drath

HTML

<div></div>

CSS

div {
margin:25px;
background:red;
width:500px;
height:250px;
border-radius:250px / 100px;
-moz-border-radius: 250px / 100px;
-webkit-border-radius: 250px / 100px;    
border-top-left-radius: 0;
border-top-right-radius: 0;
-moz-border-radius-topleft: 0;
-moz-border-radius-topright: 0;
-webkit-border-top-right-radius: 0;
-webkit-border-top-left-radius: 0;
}