Lab 18: DAGMAR and CSS
   - From the lecture, apply the DAGMAR strategy to a specific topic.  
       Let's try "convince people to build accessible web sites".
 
   - For CSS, take your html document from lab 17 and use a style
       argument to make the header red.
 
   - Now use a style tag.
 
   - Now stick it in a separate .css file and use the link tag in the
       header to include it.
 
   - Now validate it using the W3C validator.
 
   - If we get this far, I think we should go back to site design (extend
       DAGMAR). Propose a design for my (Chris Huyck's) web site.  What are
       the factors that are involved?  How bad is my current design?  What 
       are the over arching concerns of web design?