We just wear shades when we read it. Suggest you start with this . See also templ05.htm. Plain background templ04.htm Notebook-paper background templ04b.htm Navigation icons at bottom Good if you want to put your own designs at the top. For each page, try to keep the overall size down to 20K, including all graphics.
Graphics take much time to download.
Not everyone has the latest machine with a high speed connection. Very few schools do. So 20k is a compromise between trying to maintain many small pages and waiting to download a few large pages. We know this is not always possible especially if you really want to post a photogragh of a class project. There are ways to reduce the impact.