<!DOCTYPE html>
<html lang="en"> <head>
<meta charset="UTF-8">
<title>Title</title>
<style type="text/css">
.div1 {
background-color: cyan;
margin: 30px;
height: 300px;
} .div2 {
width: 100px;
height: 50px;
background-color: #239587;
border-radius: 100px / 50px;
} .div3 {
width: 50px;
height: 100px;
background-color: #231587;
border-radius: 50px /100px;
}
</style>
</head> <body>
<div class="div1">
<div class="div2"></div>
<div class="div3"></div>
</div>
</body> </html>