CSS "id" and "class" good for SEO?

[zulufox]

when choosing a name for id and class names, should I choose keywords to help with sEO?

Is this against the guidelines?

[Krapulator]

It will make absolutely no difference to SEO at all.

You should choose names that reflect the semantic content of that section. eg: id="leftMenu" class="footerNotes"

Don't use any underscores in your class and id names (common mistake).

[goodroi]

Currently the big search engines don't reward that. However there is nothing to lose other than possibly confusing yourself as you need to maintain the site.

[GaryK]

Don't use any underscores in your class and id names (common mistake).

That's the first time I've seen this mentioned. I use underscores all the time as a way to group styles according to what they do. For example, a full width table might be defined: table.Width_Full or table.Width_Dynamic. I've never had a problem with this that I know of and it passes all the XHTML validation services I use.

Please tell me what I'm missing or where I can read more about it. Thanks.

[skippy]

Don't use any underscores in your class and id names (common mistake).

The “ _ “ is treated by the SE as that. If it your desire is to use a separator for SEO purposes use a “-“.

There are a number of threads here about this. Just do a search.

[GaryK]

I did a search. Now I have more questions than I did before. I'm going to start a new thread in the CSS forum where my question will be more appropriate. Thanks for your information and help.