If an interactive button is deleted in Expression Web 4.0, what happens to the files associated with it?

What do the red stricken through properties under the CSS Property Panel of Microsoft Expression Web 4.0 represent?

What is the purpose of the button, marked as 1 in the figure above, of the Layers panel in Microsoft Expression Web 4.0?

What is the difference between the Microsoft Expression Web 4.0 status bar icons marked as 1 and 2 in the figure above?

What will happen if you click the 'Run accessibility checker button', being pointed to in the figure above, in the Accessibility panel of Microsoft Expression Web 4.0?

In Microsoft Expression Web 4.0, what is the difference between Dynamic web template and Master Page?

By default, which files are marked by the Publishing view for publishing in Microsoft Expression Web 4.0?

What is the default content type in Microsoft Expression Web 4.0?

What is the use of the SEO Checker feature of Microsoft Expression Web 4.0?

Which one is true regarding SuperPreview in Microsoft Expression Web 4.0?

What is the button being pointed to in the figure used for?