Removing White Space Around Header - from CSS?

Question

What is causing the white space around the header and
above/below the top nav bar? There's also an extra white pixel
space between each of the buttons on the top nav bar.
See;
http://home.roadrunner.com/~phenline/products/prods_models_9_10_07.html
I've also attached the CSS stylesheet.
I thought it might be a valign tag but they are all in the
main text and are necessary to glue the 3 main sections just under
the top nav bar. I couldn't find any vspace or hspace options in
the code.
Because of the rollovers on the top blue horizontal nav bar,
I need the "class" option in each <td> tag. Otherwise, if I
put the class="navMain" option on the <tr> tag, then the
whole nav bar will show the rollover color. Or, I suppose I could
create 5 different CSS styles for each nav button ???
Any ideas? Thank you.

Answer 1

HI, for first you should to revrite tables to DIV, or you can
correct this with a CSS code for the table:
for example you shold to check the background color to the
same:
.x {
background-color: #3766c8;
for more example about Table CSS styling you can check a good
wizard:
http://www.somacon.com/p141.php
Titti
http://textures.z7server.com/