| <!DOCTYPE html> |
| <html> |
| <head> |
| <style> |
| body.scrollable { |
| width: 200lvw; |
| height: 200lvh; |
| } |
| |
| div { |
| width: 200px; |
| height: 200px; |
| background-color: skyblue; |
| } |
| |
| ::view-transition-new(*) { |
| animation-duration: 30s; |
| opacity: 0; |
| } |
| ::view-transition-old(*) { |
| animation: unset; |
| opacity: 1; |
| } |
| */ |
| </style> |
| <script> |
| function startTransition() { |
| window.transition = document.startViewTransition(() => { |
| document.body.classList.toggle('scrollable'); |
| }); |
| } |
| |
| onload = () => { |
| const params = new URLSearchParams(window.location.search); |
| if (params.has('scrollbar')) { |
| document.body.classList.add('scrollable'); |
| } |
| } |
| </script> |
| </head> |
| <body> |
| <div></div> |
| </body> |
| </html> |
