controls not visible in ASP.NET WEB APPLICATION

Hi all, I am just new to the programming of ASP.net PAges.

I made a vitual directory and mad a project in it.

I place Web controls on design time, when i press F5 to run the web form in the browser, it comes out as blank.

I know it may be a littl detail that i miss cause this is my first time.

But can anyone help

THNKS IN ADVANCE