<!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>