As someone who has been dedicating a lot of time to ARIA lately, thank you so much for those periodic tables and ARIA examples. VERY helpful!
I don’t agree with giving users specific screen sizes for mobile devices, since that will give people the wrong idea to code for the devices, but I’ll leave that be .
Technically px is a relative unit of measurement though, I think? I have an itch in my head that it’s actually relative. I did some Googling to confirm and I came across multiple links all confirming, more or less.
Relative to the viewing device.
For screen display, typically one device pixel (dot) of the display.
For printers and very high resolution screens one CSS pixel implies multiple device pixels, so that the number of pixel per inch stays around 96.
So it’s relative to what the manufacture wants. Not universal.
I’m just being annoying at this point. Great article Louis.