Mats Palmgren

Using both `appearance: none` and `display: inline` might work from an implementation POV, assuming that we define all buttons to have `display: inline-block` in the UA sheet. (Currently, Gecko only...

I think the main issue with the example is that it's poorly marked up. One should never have first and second level headings be siblings in a flat list like...

No, it should **not** be `document.activeElement`. It should be `Selection.focusNode`. The reason is that you can have an activeElement without a selection, and these commands (Copy etc) _operates on the...

@Loirooriol [That's intentional](https://searchfox.org/mozilla-central/rev/44e39a47b27313029460bada366c67ebe6d7c57e/layout/base/nsCounterManager.cpp#149-152,158). We only prefer the ancestor's scope when it is an explicit `counter-reset` scope, not an implicit scope created from `counter-set/increment` as in your example (the outer ``...

So if you set `writing-mode:vertical-lr` on the table then `width` would return a definite value (the row's block-axis size) and `height` would return `auto` I guess?