<head>
<style>
img {
border-radius: 100px;
}
</style>
<link rel="stylesheet" href="style.css">
</head>
<body>
<h1>Window Seat Digest</h1>
<h3>A collection of views from airplanes</h3>
<img src="https://mimo.app/r/wing2.png"> <img src="https://mimo.app/r/wing1.png">
</body>
</html>]]>Make sure to pick border-radius
.