No Comment

When you choose "Source" or "View Source" in your browser, you are summarily confronted with an ugly tangle of HTML code which, though it looks like gobbledy-gook to you, is nonetheless crucial to your browser's ability to correctly format the text and pictures which make up a Web page. It's a simple programming language, and like any programming language, it allows the programmer to insert instructions, thoughts, and snide comments which, while invisible to the casual user, can help (or at least amuse) other programmers in maintaining the code.

Not all pages have these hidden comments, but if you want to hunt for some, they look like this: <!-- Here's the comment -->. Pretty neat, huh?