With the Visual Viewport API landing in Chrome 61, this demo demonstrating the differences between both, and also the differences on how each browser vendor implements ‘m comes in handy:
A rather geeky/technical weblog, est. 2001, by Bram(us) Van Damme
With the Visual Viewport API landing in Chrome 61, this demo demonstrating the differences between both, and also the differences on how each browser vendor implements ‘m comes in handy: