What does this code display?

<html>
<head>
<style>h3 {text-align: center;border-radius: 70px 20px 50px 30px;width:250px;background-color:lightGreen;}</style> </head><body>
  <h3>%Rounding up for dummies%</h3>
  <h4>A How-To Ebook</h4>
</body>
</html>]]>
An element with all corners roundedAn element with the third corner roundedAn element with the first and second corners roundedAn element with the fourth and first corners rounded

An element with all corners rounded.