<body>
<!--This is a comment.-->
This is not.
A comment can be placed anywhere in the document and the browser
will ignore everything inside the brackets. You can insert hidden
messages, <!--Hi Mom!--> notes to yourself, <!--Pick up milk--> or
write a helpful message to someone looking at the source of your
page.<!--Copy anything off me and you're dead meat!-->
</body>
This is not.
A comment can be placed anywhere in the document and the browser
will ignore everything inside the brackets. You can insert hidden
messages, notes to yourself, or
write a helpful message to someone looking at the source of your
page.
Just to be absolutely clear, the comment must start with <!-- and end with -->
You can (usually) even put other html tags in a comment and they will be ignored. The browser will just keep ignoring everything until it sees a -->
