Notice the image links at the top right of the page and the menu items that have been added to the master page. Only the "Sign In" and "Account" links point to pages that exist (generated by the default template) and the rest of the pages we will implement as we build our application.
注意，右上方的图片链接和红色的菜单添加到了master页面中。其中只有“Sign In”和“Account”链接已经可用，别的随后会逐一实现。
We're also going to relocate the Master Page to the Styles directory. Though this is only a preference it may make things a little easier if we decide to make our application "skinable" in the future.
将Master页面重定位到Sytles文件夹。这样做以便于后期需要为程序实现“主题风格可变”时使用。
After doing this we'll need to change the master page references in all the .aspx files generated by the default ASP.NET WebForms pages.