I still prefer Keynote to JS presentation tools since playing with layout is easier manually than with css (for me). But one killer feature Keynote lacks is sl

I still prefer Keynote to JS presentation tools since playing with layout is easier manually than with css (for me). But one killer feature Keynote lacks is slide inheritance. I love using build-outs and I wish I could edit a parent slide and have the changes propagate to its children. This feature would be much easier to build out with a JS presentation framework.