Result Size: 625 x 664
x
 
<!DOCTYPE html>
<html>
<head>
<style>
h1 {
  border-right-style: double;
}
div {
  border-style: solid;
  border-right-style: double;
}
</style>
</head>
<body>
<h1>A heading with a double right border</h1>
<div>A div element with a double right border.</div>
</body>
</html>