| <!DOCTYPE html> | |
| <html lang="en"> | |
| <head> | |
| <meta charset=utf-8> | |
| <title>Example</title> | |
| </head> | |
| <body> | |
| <p>Login names can only use letters from A to Z (upper or lowercase) | |
| and the character underscore (_) and minus (-). | |
| For example: <code its-allowed-characters="[a-zA-Z_\-]">Huck_Finn</code>.</p> | |
| </body> | |
| </html> |