css/css-grid/masonry/tentative/masonry-columns-item-containing-block-is-grid-content-width.html

<!DOCTYPE html>
<html>
<head>
<link rel="author" title="Sammy Gill" href="mailto:sammy.gill@apple.com">
<link rel="help" href="https://drafts.csswg.org/css-grid-3/#containing-block">
<link rel="match" href="/css/reference/ref-filled-green-100px-square-only.html">
<meta name="assert" content="Test passes if SVG uses grid's content logical width for its containing block size and get sized to 100px x 100px">
<style>
grid {
    display: grid;
    grid-template-columns:masonry;
    grid-template-rows: auto;
}
</style>
</head>
<body>
<p>Test passes if there is a filled green square.</p>
<grid>
    <svg width="100" height="100" viewBox="0 0 1 1" style="width: 100%; max-width: 100px; background: green;"></svg>
</grid>
</body>
</html>