<!-- HTML Comments -->This tag allows you to insert comments and notes into an HTML file without affecting the appearance of the document. To use this tag, substitute your comment for the HTML Comments. A comment does not show up in the browser, and can be any length.
Do NOT put two adjacent hyphens in a comment unless you have a good enough understanding of SGML to know what you're doing.
Note: character entities don't have any effect within a comment; everything is treated as raw data.
You cannot close this tag. </!-- --> does not exist.
Here is an example of a comment:
Here is the code for the sample above:
<!-- Why are you looking at my source code? -->
