Dynamic CSS vs Changing CSS with PHP

[DarkxPunk]

I am curious what people prefer, and yes JS is a option, but that is not always an options for all users so php can do the job.So is it better to use dynamic CSS, like em and percentage or make different CSS files for different devices and have php assign them?Be great to hear feed back.

[Ingolme]

Personally, I have one single stylesheet. I usually give static max-width and min-width values to my content wrapper, no ems or percentage.

[thescientist]

or consider a responsive layouthttp://twitter.github.io/bootstrap/

[rootKID]

for my wrapper, i use % usually.. but not always, there are times when i use static-width/height... depends on what kind fo project i am running, but usually i'm using % x)...