The content of this division (which is formatted with a white background to make things clear) was in a separate file, and it was inserted into today's lecture page by a Server Side Include directive.
This is another paragraph of inserted material, and an image floated to
the right. The image was not part of the included file, but the HTML that
inserted the image was part of the included file. The formating for all of
this division is in the internal style sheet of today's lecture page.
This is it for the inserted material!