Sort of a tangent, but on the topic of web apps, what I can't understand is how every single browser is still missing position:device-fixed [0] - if you want to

Sort of a tangent, but on the topic of web apps, what I can't understand is how every single browser is still missing position:device-fixed [0] - if you want to let people zoom in, you basically have to recreate the entire zooming yourself if you have any sort of overlay menu whatsoever [0]https://css-tricks.com/the-fifth-position-value/ https://css-tricks.com/the-fifth-position-value/