: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).
100 karma · joined October 25, 2013
https://www.youtube.com/watch?v=H1KP4ztKK0A
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.
This is probably not the case everywhere, which is why duckling uses next and this interchangeably.
Also, we should really avoid the worst effects. Even the middling effects are pretty awful.
http://www.keyboardco.com/keyboard/uk-filco-ninja-majestouch...