| <style> | |
| ol li::before { content: counter(l1) ":"; counter-increment: l1;} | |
| ol li { list-style-type: decimial; display: block; } | |
| </style> | |
| <div id="container" style="counter-reset:l1;"> | |
| <ol style="list-style-type:decimal"> | |
| <li id="line1">line1 | |
| <li id="line2">line2 | |
| <li>line3 | |
| </ol> | |
| </div> |