I am aware that each DNN module has the "allow print" option to display a "Print" button at the bottom of the module that opens a print friendly page for printing. 
What I am looking for is if there is a way to create a print button that prints the entire web page. Does anyone know how to do that?

Thanks.

The "print" button is not for triggering the print function, but to apply a css style sheet that is made to be printing friendly.
I know this can be done by hard coding for any webpage, but I am wondering if there is a way to setup it in DNN so it's automatically up for all pages.
DNN has this function for each individual module, but I am wondering if there is a way to set this up for the entire page.