<!DOCTYPE html>
<html lang="en-US">
<head>
<title>test of border-image-source: linear-gradient with border-image-width</title>
<style>
div.border {
border: 30px solid black;
border-image: linear-gradient(to bottom right, red, blue);
border-image-width: 0.5 1 2 3;
width: 180px;
height: 180px;
}
</style>
</head>
<body>
<div class="border"></div>
</body>
</html>