Document fallback with example styles #73
Merged
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As discussed on #71, there's not much the component can do itself to provide a fallback, but it's very valuable to document how the fallback works for people less familiar with web components.
This adds a prominent example and educational info that will hopefully encourage people to provide a fallback for the numerous instances when it might be needed. It includes some opinionated example styles which specifically call out using
aspect-ratio
to match the normal dimensions of a YouTube embed.Adding this documentation feels like enough to satisfy #71 in my opinion, but I'd like to hear @simevidas weigh in on that too.
Additional minor change: remove whitespace at start of lines in playlist example that no other example code has.