Re: [csswg-drafts] [css-position] Sticky table header - not sticky border issue

@jan-tosovsky-cz I've noticed similarly and don't think it's an issue with your css. The feature is quite underspecified, leaving browsers to implement and discover a lot. In [css-position-3](https://drafts.csswg.org/css-position-3/#sticky-pos), it says "a stickily positioned box is positioned similarly to a relatively positioned box", which, being too simple a comparison, has caused confusion about stacking contexts and tables. Here, it's most likely piggybacking on the way that `position: relative` only adds the position scheme to a cells content box, leaving the collapsed borders "in flow".

There already are compatibility issues with rendering unique collapsed borders, which depend on document order, `border-width`, and the alpha channel of `border-color`, though I'm guessing you'd suggest that borders be "doubled up and stacked atop each other" visually?

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Received on Monday, 24 September 2018 01:57:18 UTC