Re: [csswg-drafts] [css-borders-4] Rendering of outset shadow spread with concave 50% corner-shapes (#13037)

This appears equivalent to the current outline rendering. From the user's perspective, the box-shadow should definitely maintain a diamond shape; otherwise, it would look significantly different from a real physical projection.

You can also compare the rendering effect of `drop-shadow()`.

Additionally, is it possible to algorithmically fill in the missing triangular portion?

<img width="1306" height="912" alt="Image" src="https://github.com/user-attachments/assets/ccb88215-3ce8-4471-b317-72156398b0f4" />

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Received on Wednesday, 29 October 2025 14:49:44 UTC