[web-animations-1] Add advice about not using indefinitely filling animations

[birtles]

No description provided.

[stephenmcgruer]

LGTM, thanks for doing this. I really appreciate the inclusion of 'ways you should actually do this' as well.

I wonder if we could get something added to https://developer.mozilla.org/en-US/docs/Web/API/EffectTiming/fill as well?

[birtles]

I wonder if we could get something added to https://developer.mozilla.org/en-US/docs/Web/API/EffectTiming/fill as well?

Sure! Will do. (I'll merge this first though so I can link to it.)

Also, I'm sure you're aware but just in case, MDN is publicly editable (you can login with GitHub) so feel free to edit away if you notice anything amiss.

[birtles]

I wonder if we could get something added to https://developer.mozilla.org/en-US/docs/Web/API/EffectTiming/fill as well?

Edited: https://developer.mozilla.org/en-US/docs/Web/API/EffectTiming/fill$compare?locale=en-US&to=1549696&from=1494907

[stephenmcgruer]

Also, I'm sure you're aware but just in case, MDN is publicly editable (you can login with GitHub) so feel free to edit away if you notice anything amiss.

I was not aware! Thanks for letting me know.