<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title>Document</title> <style type="text/css" media="screen"> div{ width: 100px; height: 100px; margin: 0 auto; background: #ccc; /* border-radius: 50%; */ border-radius: 10px 20px 30px 40px/20px 30px 40px 50px; } </style> </head> <body> <div> </div> </body> </html>