Round the corners of the profile picture by coding the missing property.

<html>
  <head>
  <style>
img {
border-radius:20px;
}
  </style>
  </head>
<body>
  <h2>Schrödinger</h2>
  <p>
   <em>Verified SnapCat</em>
  <p>
  <img src="https://mimo.app/r/cat.png">
</body>
</html>]]>

Make sure to type border-radius.