If you need to create a web page on which some parts should not be visible when it is printed (or even print-previewed) you can use the following CSS:
@media print
{.notPrint
{display:none;
}
}
Then in the html you can specify something like this:
<div class=’notPrint’>This is not visible in printing</div>
This is useful if you have things like buttons and other stuff that is not applicable when printing.