| <!DOCTYPE html> | |
| <meta charset="UTF-8"> | |
| <title>CSS Reference</title> | |
| <link rel="author" title="Xidorn Quan" href="https://www.upsuper.org"> | |
| <link rel="stylesheet" href="/fonts/ahem.css"> | |
| <style> | |
| .rel { position: relative; } | |
| .abs { position: absolute; left: 0; top: -1em; } | |
| </style> | |
| <body style="font: 50px/3 Ahem"> | |
| X<span class="rel"><span class="abs">X</span></span> |