Bad CSS in iWeb?

Question

I started using iWeb only recently (iWeb 3.0.2, came with iLife '11) and I am blown away with the beauty of the web pages that it can create. (Until now, I used to create web pages in a text editor.) I am also impressed that unlike some other WYSIWYG editors iWeb writes correct XHTML.
However, I have one silly problem with iWeb: according to the W3C CSS validator, it makes many errors in the CSS. In fact, iWeb's CSS does not conform to any of the four versions of the CSS standard (1, 2, 2.1 and 3).
Is there something that I am doing wrong here? Or is iWeb known to be sloppy with CSS? In the latter case, is there a workaround to ensure that the final outcome always has correct CSS? Thanks for any comments.

Answer 1

It didn't work, What I did this morning was:
1-Created again the empty page in Iweb called Test, Iweb saved one Test.html file and a Test_files folder.
2-Created again a css3menu file with the menu in a different local folder, it opened in firefox perfect , creating a Test.html file and a Test_files folder inside wich is the css3menu1 folder. It looks like:
3-I have a local carpet where I save the webs done by Iweb. I copy the css3menu1 folder inside the root and also inside the Test_files folder.
4-Open the Test.html file with Coda a change the <link rel....deleting the line Test_files..and copy the head with a widget in Iweb's head (at the very top) , and then the body in another widget in Iweb's body (in the middle)
It did't worked. this is how it looks.
The links work, but not the stethics, as you can see the part wich is suppossed to be the header is a  empty widget at the top, and the part of the body is showing the plain text
I have no trouble cretaing the css3menu and it looks perfect in html. but I want to use it inside my pages creates by Iweb, first in my local folder, then once the stethics are OK upload it to my ftp.
I thing you're in the right way, because when I delete the lines with Coda and save the Test.html file (of css3menu) and opened it it looks as the second image, so it seems than when the "link rel" line changes the head and the body gates kind of foolin and do not work well for some reason.
Also the problem that Iweb open .html files in a strange way no matter if you do it as a widget or as a selection.
Another problem is the behaviour of Iweb that saves the files for the upload wherever you want, but when it opens it searches in the domain file instead of the saved to a local folder.
So resuming I have not trouble creating a menu to a html file with css3menu. My problem is to insert it in my Iweb pages in the local folder and make the edition of the pages.
Thanks a lot for your time.