Al Willis

According to the [`focus-visible` spec](https://drafts.csswg.org/selectors-4/#the-focus-visible-pseudo), looks like what we want (at least for now) is `:focus:not(:focus-visible) { outline: 0; }` to remove the default focus style only if `:focus-visible` is...

>That rule doesn't seem bad, but I don't think it changes anything compared to the browser's default behavior, so I am unsure how helpful it is. In the spirit of...

>`:focus:not(:focus-visible) { outline: 0; }` seems useful to override styles an author would have applied using `:focus`, since that's too broad, but browsers don't do that, and we're talking about...

No luck: here's the output of attempting to install `hfc` after updating `npm`: [https://gist.github.com/alwillis/e9a319ea195f01936197225ffaa6402b](https://gist.github.com/alwillis/e9a319ea195f01936197225ffaa6402b)