- From: Brandon McConnell via GitHub <sysbot+gh@w3.org>
- Date: Tue, 21 May 2024 19:28:16 +0000
- To: public-css-archive@w3.org
@Loirooriol I should have provided the sample DOM structure for my example. My apologies.
For this exact & specific sample DOM structure:
```html
<html>
<body>
<div class="a">
<div class="b">…</div>
</div>
</body>
</html>
```
Both `.a:is(:root *) .b { … }` and `.a .b:is(:root *) { … }` yield the same effect, as per this example, both `.a` and `.b` are under the `:root`, for this specific example. They clearly have different meanings and cannot be used interchangeably.
**Example:** https://codepen.io/brandonmcconnell/pen/wvbGQrQ/2c3bd4ba8d19d211524a7be68c9ae8c8
The general idea I am attempting to demonstrate is that a `:when()`, `:media()`, `:supports()`, `:starting-style()`, etc. pseudo-class would not be the first pseudo-class to allow matching a selector based on an upper scope.
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