CSS3 animation-fill-mode polyfill?

If it were me I'd try an opt for the simpler alternative - if possible. I'd downgrade my implementation so that I'm only using what is commonly accepted. Later on, when the feature is more widely supported I then think about implementing it.

I rarely consider using a feature that has This is an experimental technology broadcast on documentation pages - but then maybe I should be classed as boring :).

I don't know of any polyfill... But I'd say you should indeed use your own custom Modernizr test, and for browser that don't support animation fill mode, you should use the animationEnd event to trigger your callback and set opacity to 1 (or remove a class).

I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.