<!DOCTYPE html>
<html>
<head>
    <link rel="stylesheet" href="resources/filter-helpers.css">
    <script src="resources/filter-helpers.js"></script>
</head>
<body>
    <script>
        const filters = [
            'opacity(0)',
            'opacity(0.2)',
            'opacity(0.4)',
            'opacity(0.6)',
            'opacity(0.8)',
            'opacity(1.0)',
        ];

        buildSVGFilteredBoxes(filters);
    </script>
</body>
</html>
