289474 2025-03-10 10:45:12 -0700 Inability to have an exit animation on the backdrop of a dialog 2025-03-11 19:29:18 -0700 1 1 1 Unclassified WebKit Layout and Rendering Safari Technology Preview Mac (Apple Silicon) macOS 15 RESOLVED DUPLICATE 276727 P2 Normal --- 1 jeroen.zwartepoorte webkit-unassigned bfulgham graouts karlcow simon.fraser zalan oldest_to_newest 2101968 0 jeroen.zwartepoorte 2025-03-10 10:45:12 -0700 If you are using `@starting-style` to animate the entry of a dialog+backdrop, there is no way to also animate the exit. There seems to be a proposal for an `overlay` property that only Chromium implements to far. This codepen showcases how you can do `transition: overlay 1s allow-discrete` to have an exit animation on the backdrop. See https://codepen.io/argyleink/pen/zYbQBOm for a complete example. Related to this, i filed https://bugs.webkit.org/show_bug.cgi?id=289473 for how dialog behaves on exit, without support for `overlay` atm. 2102017 1 jeroen.zwartepoorte 2025-03-10 13:16:00 -0700 The `overlay` property is from https://drafts.csswg.org/css-position-4/#overlay btw 2102432 2 karlcow 2025-03-11 19:29:18 -0700 *** This bug has been marked as a duplicate of bug 276727 ***