Printing question

Do you know if it is possible to send to print one page but in deed get printed a very different thing? I tried to print one website but it did not pirint a way different, it printed different content. First I thought that it was something left on the que before but after 3 times a relized that I was printing the "right" site. Can someone explain please?

Because internet is not only (though primarily) intended to be on screen media, CSS can be applied according to the targeted media its intended to be used with. So you can set up your page to look one way on the screen and another way on the printer. See this example, where the background on the screen is green but it will print red. The same can be done regarding the display attribute, it can be display: none on the screen and display: inline on the printer and thus you can print a compleatly different site or content from the which that is displayed on your screen.