| <!DOCTYPE html> | |
| <link rel="match" href="counters-ref.html"> | |
| <title>Tests counter updates</title> | |
| <style> | |
| #container { | |
| contain: size layout; | |
| width: 200px; | |
| height: 200px; | |
| } | |
| #counter::before { | |
| content: counter(my-counter); | |
| } | |
| @container (min-width: 300px) { | |
| #counter { | |
| counter-reset: my-counter 100; | |
| } | |
| } | |
| </style> | |
| <p>Pass if you see the number 100 below.</p> | |
| <div id="container"> | |
| <div id="counter"></div> | |
| </div> | |
| <script> | |
| container.offsetTop; | |
| container.style.width = "400px"; | |
| </script> |