stylesheet, themes & VS

[Robert]

Hi all,
I've got a stylesheet defining 3-column layout using CSS stylesheet. I used
to define this stylesheet this way:
<link href="Whatever/Style.css" rel="stylesheet " type="text/css" /> and in
HTML I use <div> tags with appropriate class name.

Now I decided to use Themes.In my App_Themes folder I created a new Theme
"Default". I put stylesheet Style.css in it, and I also add <pages
theme="Default"/> into web.config to use this Default theme. When I run the
web, everything works pretty well, ASP.NET server puts the <link
href="App_Theme s/Default/Style.css" rel="stylesheet " type="text/css" /> into
header as I expected.

But in Visual Studio, there are no columns, it's like flow layout. Designer
seems that has no info about used classes. It's a little confusing, because
you don't see real layout while you design pages. Do I something wrong? Or
missing something? Or just didn't understand?

Thank you for any help.
Best Regards,
Robert