To see how a page was created, you simply need to view the "source
file." After the page you want to view has finished loading, pull down the
"View" menu box and select "Document Source." If the page you're looking at
is using frames, you can also view the source of an individual frame
by clicking once in the frame and then selecting "View...Frame
Source."

To see how this works, click on this web page template. Once it is displayed, click "View" in the Menu Bar and select "Document Source."