A reader named Arjan recently emailed me telling me about a website that The Printliminator didn’t work on. They had traced it back to the fact that the site used a bunch of “overlays” with ridiculously high values for z-index. The Printlimintor injects itself on the page with absolute positioning and a z-index value of 10000, which I already consider to be ridiculously high

Read the original:
Rational Z-Index Values