-RanZ-

I have just started getting into CSS layouts and was wondering something...

is it better to use div IDs or classes? I have been using IDs because thats what some of the training material I read used. Is it better to use just one of them or is a mix fine?

ex:

<div id="content_main"> </div>

using css:

div#content_main {
margin:0;
padding:0;
}


would it be better to do:

<div class="content_main"> </div>

using css:

.content_main {
margin:0;
padding:0;
}

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DK Web Solutions Pass70 & Pass33

braincracking

An ID is for single use e.g preferablly 1 element on a page.
While a class, is designed for multiple elements on a page with the same class, I hope this clarifies a little where you should use what :p

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H

braincracking kinda clarified the usage.

Generally and ID is used as an identifier... you only have one header. It must be unique. I try to only use ID's on page structure elements.

Classes are interesting. They're generally overused (I hate people who put class="blah" on every list item within a list... put it on the damn list element!), but still very necessary and useful.

In the case you provide of your div containing the main content, I'd recommend you use an ID.

-RanZ-

ok, so use IDs on the main elements that do not change and class on things like centering text or text color... something that can be re-used throughout the page/site

thanks!

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DK Web Solutions Pass70 & Pass33

MarkRH

I use ID's for container elements or major sections/blocks of a page (so, typically only with DIVs). I then use classes to either apply to any element of a given type on a page or just for items within a containing ID. Say, I only want anchor tags in my sidemenu to be a certain color, which won't change the color of anchor tags outside of that section:

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