How To Get Screen Size

[wacsyweezy]

Good day Have been thing about how to let a particular CSS file works in all different type of screen size. However, i knew it can be done using JavaScript, but my problem is implementing it My Fellow Geeks, i did like to learn how to implement this Though, i can implement different style sheet in a single web page, but my problem is allowing the style sheet to work in full screen mode in all device. Please NOTE, am not having problems with mobile devices, am concern with real computer systems ThanksWeezy