| <!DOCTYPE html> | |
| <html> | |
| <head> | |
| <title>CSS level4 Selector :required and :optional</title> | |
| <link rel="author" title="LEE YUN HEE" href="mailto:zzirasi@gmail.com"> | |
| <style> | |
| input {border:3px solid green;} | |
| </style> | |
| </head> | |
| <body> | |
| <p> | |
| You should see a green input box. | |
| </p> | |
| <p> | |
| <input> | |
| </p> | |
| <p> | |
| <input> | |
| </p> | |
| </body> | |
| </html> |