Control the look and feel in Asp.Net.

1> Add a folder called "App_Themes" under the website.
2> Create a different folder under the App_Themes, and each one is a different theme name.
something like this
App_Themes
---- Default
-----Summer
-----Winter
3> In the web configuration file,
, this will associate a theme with the webpage.
4> Add the css files and skin files under the different folder.