Code

Can change a specific area or the entire page background, depending.

JavaScript character escapes:
\^, \$, \\, \., \*, \+, \?, \(, \), \[, \], \{, \}, \|, \/
HTML character entities:
   non-breaking space   &nbsp;   &#160; < less than   &lt;   &#60; > greater than   &gt;   &#62; & ampersand   &amp;   &#38; " double quotation mark   &quot;   &…

HTML <p>This is a simple HTML code </p>

To detect which link was clicked inside an iframe:

This would be kind of cool if it works. I don't really have a need for something like this right now but it would probably be fun to play with.

I found this via the AI on Google search: