how to create master page with content placeholder asp.net

Hello friend please see this..

after creating a website

1) right click solution explorer
2) select add new item
3) select master page
4) design master page as per your requirement
5) right click your designed master page
6) select add content page
7) do any thing you want with content page


you can also add content page as many as you need

OR
if you need visual tutorial then please see this
this is nice article that shows what you want....

http://www.asp.net/master-pages/tutorials/creating-a-site-wide-layout-using-master-pages-cs[^]