| <!DOCTYPE html> | |
| <html> | |
| <head> | |
| <style> | |
| .container { | |
| font-family: ahem; | |
| font-size: 100px; | |
| overflow: hidden; | |
| height: calc(1em - 20px); | |
| } | |
| span { | |
| color: transparent; | |
| background-color: green; | |
| } | |
| </style> | |
| </head> | |
| <body> | |
| <div class="container"> | |
| <span>AAAA</span> | |
| </div> | |
| </body> | |
| </html> |