Re: [csswg-drafts] [css-animations-2] Add animation-trigger for triggering animations when an element is in a timeline's range (#8942)

@flackr I think we have a small issue with the ranges syntax. Take a look at the following example:

```css
#target {
  animation-trigger: repeat view() contain cover;
}
```

In the above the `contain cover` part will resolve to the `contain 0% cover 100%` of the default range, with the exit range defaulting to the same range.

But the intent could also be to resolve to `contain 0% 100% cover 0% 100%`.

Should we add a `/` separator between the two ranges to distinguish them more explicitly?
So it would become:

```css
#target {
  animation-trigger: repeat view() contain / cover;
}
```

And if there's no range on the lefthand side it can be computed to `normal`.

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Received on Thursday, 18 April 2024 06:17:08 UTC