Re: [csswg-drafts] [css-borders-4] Use cases for `corner-shape` (#6980)

Adding a backlink to the mention of `corner-shape` in the [Anchor Positioning Exploration](https://fantasai.inkedblade.net/style/specs/css-anchor-exploration/#tether-styling), as a potential way to achieve the default tether element styling.

Screenshot from the [slides](https://www.icloud.com/keynote/0f5UxcimbeDm24dK6S_Of2YOw#Anchor_positioning_presentation_to_CSSWG) for this exploration:

<img width="1269" alt="Screenshot of a slide showing the tether pseudo-element between the popover and its anchor, depicted as an solid arrow as a continuation of the popover's body." src="https://github.com/w3c/csswg-drafts/assets/177485/49ef7d14-6ff0-4f61-9663-e128bfabe026">

Code from this slide:

```CSS
::tether(top/any) {
  border-radius: 0 0 50% 50% /
                0 0 100% 100%;
  corner-shape: angle;
}
```

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Received on Saturday, 9 September 2023 00:03:20 UTC