If the browser displaying this page supports
Cascading Style Sheets (CSS), the heading will be blue
and the paragraph will be red. Note that there is a link
in the code to a file named "mystyle.css". You must therefore
create this file using your text editor and put in it the
information that you saw imbedded in a comment in "example21.html".
Also, this file must be located in the same directory(folder) as
this example (e.g., your WWW folder if you have an ETOWN account).