Password generator app

What are you most proud of, and what would you do differently next time?

I'm most proud of somehow making the slider's styles correctly. This looked simple at first but seeing how convoluted the support for range inputs is was so frustrating.

What challenges did you encounter, and how did you overcome them?

A lot of trouble styling the slider correctly on Safari and Chrome since the webkit is missing one pseudo class to style the left side of the slider, so I used a linear gradient with strict color stops instead.