css/css-writing-modes/writing-mode-vlr-015-manual.html

<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8"/>
<title>writing mode:vertical-lr, image orientation</title>
<link rel="author" title="Richard Ishida" href="mailto:ishida@w3.org"/>
<link rel="help" href="https://drafts.csswg.org/css-writing-modes-3/#block-flow"/>
<meta name="assert" content="By default, replaced content such as images is displayed upright."/>
<style type="text/css">
@font-face {
    font-family: 'webfont';
    src: 	url('/fonts/noto/NotoSansMongolian-regular.woff2') format('woff2');
    font-weight: normal;
    font-style: normal;
	}
.test { font-family: webfont, serif; font-size: 24px; float: left; margin-right: 30px; color: #ccc;  color: #ccc; }
</style>
<!-- this is the test -->
<style type="text/css">
.test { writing-mode: vertical-lr; }
</style>
</head>
<body>
<p class="instructions">Test passes if the text is vertical and the world map has north at the top.</p>
<div id="test" class="test" lang="mn">ᠮᠤᠩᠭᠤᠯ <img src="support/world.png" alt="ref image"/> ᠤᠯᠤᠰ</div>
</body>
</html>