This looks really cool, the world needs more stuff like this.
One minor complaint is with the scrollable slide-outs. When you scroll down through a slide-out like the Instagram one, and reach the bottom, the page behind starts scrolling.
This is a common problem, and why I dislike using scrollable areas on web pages in the first place. There must be a good way to fix this. I just don't want the outside area to scroll when my context is inside the small scrollable area.
Seems like one possible way would be to overflow: hidden the background scrollable area while a popover is open, assuming that doesn't screw up its scroll position. Big problem with that is that it makes scrollbars go away :/
One minor complaint is with the scrollable slide-outs. When you scroll down through a slide-out like the Instagram one, and reach the bottom, the page behind starts scrolling.
This is a common problem, and why I dislike using scrollable areas on web pages in the first place. There must be a good way to fix this. I just don't want the outside area to scroll when my context is inside the small scrollable area.