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"Difference between CLASS and ID ... ?"

I recently decided to try and learn how to use cascading style sheets properly (emphasis on the "try") and so I threw myself into it, reading up on stuff from w3.org as I went along. So far it's going okay with all the usual hiccups and learning curves.

One thing confuses me, however: what's the difference between CLASS and ID? This may be obvious to a seasoned programmer but I'm new to this and I'm confused. If possible could someone explain when I should use CLASS and when I should us ID and, please, don't get *too* technical otherwise I'll get lost!

Thanks in advance.

Thanks - that's really helped!

Now I'm off to remove all traces of tables from my website ...

ID is like name .. it gives a particular element an identity.

Class is a set of properties you can give to any element.

You can use the same class in as many elements as you like, whereas Id's have to be unique for each element.



#anID {
properties go here
}

.aClass {
properties go here
}




--- 'anID' can only be called on once.

Page Content

a link


--- 'aClass' can be called on may times.

I recently decided to try and learn how to use cascading style sheets properly (emphasis on the "try") and so I threw myself into it, reading up on stuff from w3.org as I went along. So far it's going okay with all the usual hiccups and learning curves.

One thing confuses me, however: what's the difference between CLASS and ID? This may be obvious to a seasoned programmer but I'm new to this and I'm confused. If possible could someone explain when I should use CLASS and when I should us ID and, please, don't get *too* technical otherwise I'll get lost!

Thanks in advance.