| <!DOCTYPE html> |
| <link rel="help" href="https://drafts.csswg.org/css-sizing-4/#last-remembered"> |
| <script src="/resources/testharness.js"></script> |
| <script src="/resources/testharnessreport.js"></script> |
| |
| <div id="log"></div> |
| |
| <div style="height: 2000px;"></div> |
| |
| <div style="contain-intrinsic-size: auto 1px;" id="test"> |
| <div style="height: 50px;"></div> <!-- make 'test' have a 50px height --> |
| </div> |
| |
| <script> |
| function finalize() { |
| el.style.contentVisibility = "auto"; |
| log.innerText = el.offsetHeight; |
| assert_equals(el.offsetHeight, 50); |
| } |
| |
| var t = async_test("contain-intrinsic-size: auto"); |
| |
| var log = document.getElementById("log"); |
| var el = document.getElementById("test"); |
| var observer = new ResizeObserver(function() { |
| requestAnimationFrame(t.step_func_done(finalize)); |
| observer.unobserve(el); |
| }); |
| |
| observer.observe(el); |
| el.offsetWidth; |
| |
| </script> |
