Hi Team, I hope you are well. I just wanted to raise this for aligning "dialog.css" with other browsers and see if it leads to more WPT Test passes: Webkit is missing following compared to Blink: dialog:modal { user-select: text; } https://source.chromium.org/chromium/chromium/src/+/main:third_party/blink/renderer/core/html/resources/html.css;l=1401?q=html.css and compared to Gecko and Blink, we are missing: dialog:not([open]) { display: none; } ^ this is technically there with dialog {} but I think moving to above would be more aligned with all browsers. https://html.spec.whatwg.org/multipage/rendering.html#flow-content-3 And let see what happens. Thanks!
> dialog:not([open]) { > display: none; > } We do it slightly differently, but it's there: https://searchfox.org/wubkat/rev/cf0cfbaf1ad7728a145c06e3539170870bbb913f/Source/WebCore/css/dialog.css#12-17 > dialog:modal { > user-select: text; > } Same here, we implement this through inertness (similar to how Firefox does it): https://searchfox.org/wubkat/rev/cf0cfbaf1ad7728a145c06e3539170870bbb913f/Source/WebCore/rendering/style/RenderStyle.cpp#2934-2944