New proposed styling

FYI - having had no recent news from the small group of people who had 
proposed to help us with the graphic/visual design of our tools, I 
eventually took a day to take care of it myself, with, admittedly, 
probably not as good results as a real graphic designer would have 
given, but reasonable nonetheless.

Current state visible at the usual:
http://qa-dev.w3.org/wmvs/HEAD/

Rationale behind some of the choices:

- block width: very long lines, permitted by our non-limited window 
width, are really hard to focus on. Books seldom go past 15 words per 
line, newspapers even less. Without going that far, I tried to limit 
the width of the window so that it doesn't go past 20 words in a 
reasonable font.

- colors. Our current scheme isn't "ugly" but grey-white can be a bit 
bleak. Blue is the color generally associated with W3C, so blue. Blue 
is also, however, the usual color of links (I kept that, though still 
wondering about underlining them) so the headings (except the top 
title) can't share the same color. Frank reds and greens are out of the 
question - I like pink but I'm already working on a pink and blue site 
off work - so I chose a color that helped me win a bet with Karl :).

- The little blue tab is a distinctive sign of our specs. We should use 
that - consistently - for tools related to our specs.

The design is not fully decided yet and there are a few things to fix, 
but once this is done, and barring strong disagreement, I wish to use 
this as the default style for the markup, css validators and checklink 
starting at their next respective releases.

Note that the changes so far are purely CSS. Time permitting, I aosl 
intend to have a look at information presentation and wordings.

-- 
olivier