border-radius: 25px;

border-radius: 25px 100px;

border-radius: 5px 25px 75px;

border-radius: 5px 25px 50px 75px;

border-radius: 0 200px;

border-radius: 0 0 0 200px;

border-radius: 200px 200px 0 0;

border-radius: 200px;

border-radius: 50px 50px 50px 0;