| <!DOCTYPE HTML> | |
| <title>::details-content pseudo element supports ::before and ::after</title> | |
| <style> | |
| .letter { font-size: 2em; } | |
| .line { font-weight: bold; } | |
| </style> | |
| <details open> | |
| <summary>summary</summary> | |
| <span class="line"><span class="letter">T</span>he contents</span><br> | |
| are on multiple</br> | |
| lines. | |
| </details> |