Comments are text lines that are in your HTML file that do not appear on the screen. Comment tags are used as special notes for you or other people that may author or read the source code. Below is an example.
< HTML >
< HEAD >
< TITLE > Butch is the Greatest Dog < /TITLE >
< /HEAD >
< BODY background="#ffffff" >
Butch is the name of Professor Lynne Grewe's dog.
<! Butch is a copyright of Lynne Grewe Inc. > < /BODY
>
< /HTML >