☆slides1
https://ggg50.github.io/test/slides/past/slides0.html
☆slides2
https://ggg50.github.io/test/slides/past/slides.html
☆slides3
https://ggg50.github.io/test/slides/past/slides2.html
☆☆☆apply-like slides:
https://ggg50.github.io/test/slides/apple/apple.html