So after working on a website for like a month to make it kinda pixel perfect in every resolution on every device the web designer just tells me "ok, you should move this whole thing up 30px"

Ok, no problem, I change the CSS for that div and make it all go up 30px

The very next day he tells me the while thing is fucked up and not aligned any more

I mean, is was all the same as before, nothing changed!