On Thu, Jul 7, 2022 at 10:36 AM David Baron <dba...@chromium.org> wrote:
> Most relevant to this intent is the case on http://www.elster.de where > default is used (which is the only actual site that I'm aware of this > change affecting): it is a use in the animation-name property. The > relevant chunk of CSS is the following (with newlines added): > > body{animation-name:default;animation-duration:1ms;content:'default'} > @media screen and > (min-width:20rem),print{body{animation-name:min;content:'min'}} > @media screen and > (min-width:30rem),print{body{animation-name:xs;content:'xs'}} > @media screen and > (min-width:48rem),print{body{animation-name:small;content:'small'}} > @media screen and > (min-width:60rem),print{body{animation-name:content;content:'content'}} > @media screen and > (min-width:60rem),print{body{animation-name:medium;content:'medium'}} > @media screen and > (min-width:80rem),print{body{animation-name:large;content:'large'}} > @media screen and > (min-width:105rem),print{body{animation-name:xl;content:'xl'}} > @media screen and > (min-width:120rem),print{body{animation-name:max;content:'max(a, b)'}} > @keyframes > default{from{clip:rect(1px,auto,auto,auto)}to{clip:rect(0,auto,auto,auto)}} > @keyframes > min{from{clip:rect(1px,auto,auto,auto)}to{clip:rect(0,auto,auto,auto)}} > @keyframes > xs{from{clip:rect(1px,auto,auto,auto)}to{clip:rect(0,auto,auto,auto)}} > @keyframes > small{from{clip:rect(1px,auto,auto,auto)}to{clip:rect(0,auto,auto,auto)}} > @keyframes > content{from{clip:rect(1px,auto,auto,auto)}to{clip:rect(0,auto,auto,auto)}} > @keyframes > medium{from{clip:rect(1px,auto,auto,auto)}to{clip:rect(0,auto,auto,auto)}} > @keyframes > large{from{clip:rect(1px,auto,auto,auto)}to{clip:rect(0,auto,auto,auto)}} > @keyframes > xl{from{clip:rect(1px,auto,auto,auto)}to{clip:rect(0,auto,auto,auto)}} > @keyframes > max{from{clip:rect(1px,auto,auto,auto)}to{clip:rect(0,auto,auto,auto)}} > > This is rather a lot of CSS to apply the clip property to body for the > first 1ms of the page's existence. I'm not sure why it's there, but maybe > it's a workaround for something. In any case, this change would cause this > chunk of CSS to no longer do whatever it does (which is likely not very > much) for pages whose width is less than 20rem. > > elster.de has had > <https://github.com/webcompat/web-bugs/issues?q=is%3Aissue+elster> a > bunch of webcompat issues with Firefox, but none of the ones in that list > seem related to this issue. > And one further point about www.elster.de that I had forgotten about: the clip property only applies to absolutely positioned elements, which their body element is not. So whether or not default is valid as a custom-ident, the above CSS should be 18 lines of no-op. -David -- You received this message because you are subscribed to the Google Groups "blink-dev" group. To unsubscribe from this group and stop receiving emails from it, send an email to blink-dev+unsubscr...@chromium.org. To view this discussion on the web visit https://groups.google.com/a/chromium.org/d/msgid/blink-dev/CAG0MU3iCbPu4zd555RAn-b4raJwg7Go42RuV%3DuQ0Mpp0kf8Etw%40mail.gmail.com.
