Example
HTML Source code
<!DOCTYPE html>
<html>
<head>
<meta content="text/html;charset=utf-8" http-equiv="Content-Type">
<title>Example: writing-mode for table headers</title>
<style>
thead td {
writing-mode: sideways-lr;
vertical-align: bottom;
/* writing-mode: vertical-lr; */
/* text-orientation: upright */
}
</style>
</head>
<body>
<table>
<thead>
<tr>
<td></td>
<td>Flag one</td>
<td>Flag two</td>
<td>Flag three</td>
<td>Flag four</td>
</tr>
</thead>
<tbody>
<tr>
<td>Foo</td>
<td>✓</td><td>✗</td><td>✗</td><td>✓</td></tr>
<tr>
<td>Bar</td>
<td>✗</td><td>✓</td><td>✗</td><td>✓</td>
</tr>
<tr>
<td>Baz</td>
<td>✓</td><td>✗</td><td>✓</td><td>✗</td>
</tr>
<tbody>
</table>
</body>
</html>
Github repository about-css, path: /properties/writing-mode/table-header.html