AbsoluteDestiny

:focus-visible allows you to work out if something has focus because it was clicked (not what you usually want) or if it's been tabbed to via a keyboard (what you want).

You could just crop then scale which should give you a lot more control.

Every linked element relies on ids: anchors, the label for attribute, all of the aria-labelledby, controls, describedby etc. Sure a full selector would be better but what level of css selectors do you support when writing the spec for user agents to know that can support the element?

Be careful when using semantic elements purely for presentation purposes. For instance, the <aside> element gives the element a landmark role 'complimentary' telling assistive devices that this is not part of the main content.

That's not really true for your cards, though, they are part of the content.

Also, having multiple complimentary landmarks in the same context (main, footer) is really confusing. Having 3 <aside> elements next to each other would be like having three <header> elements next to each other.

Video codecs compress better than GIFs, so auto playing video elements can be used for this.

Colloquialisms will pose tricky when they conflict. For example, "3pm next friday" is deciphered by duckling as Friday, 3 October 2014 at 15:00:00 +0000 (UTC) which would not be correct if talking colloquially where I grew up as "next" means not this one but the one after or, more generally, "the one next week not the one this week".

This is probably not the case everywhere, which is why duckling uses next and this interchangeably.

Likewise it doesn't know what a fortnight is.

It doesn't matter how quickly we put carbon in the atmosphere. It has a 200 year effect - taking 60 more years versus 20 is meaningless if you end up putting it all up there anyway. The only difference would be how soon we suffer the worst effects - it's too fast for adaptation in nature for most evolutionary or migratory processes either way. I suppose you could hope for a technological silver bullet but that's effort made while dealing with a much more costly carbon economy.

Also, we should really avoid the worst effects. Even the middling effects are pretty awful.

The real problem with 3D is much like the problem with hearing 'whispers' behind you with surround sound... I go from being immersed in the movie to being rudely reminded that I am in a cinema watching a movie. Until the experience is something that doesn't announce the technology it's only ever going to be a gimmick and, in terms of my connection to the story/character/situation, I'd much rather lesser quality simulation with greater emotional connection and persistent immersion than something 'technically' better.

For making any art containing that character. Seems like a big deal. I thought he already was public domain and that was why there were so many derivative works (movies, tv, video games etc) but I guess they all had to license the character from the Doyle estate (for US works at least).

The biggest downside I found with kivy is the amount of time it takes to launch the app as it has to set up the python environment et al. If that's improved with newer versions of kivy I might go back to see what it can do.