print preview dont show any content of the sharepoint page

When using Microsoft custom Master Pages, print preview pages dont show any content in the body of the page.    Reason: Sharepoint use core.css file in which they write few classes where they says that this class should not be use for print/media.   Solution: While customizing make sure not to use those classes on top of your body area. So that it wont hide it. Few classes: Few of classes I m mentioning below which if you use on top of body area then print will not display content.                                   .ms-leftareacell,.ms-globallinks,.ms-siteaction,.ms-areaseparatorleft,.ms-rightareacell,.ms-areaseparatorright,                                  .ms-areaseparatorcorner,.ms-titlearealeft,.ms-titlearearight,.ms-searchform,.ms-banner,.ms-buttonheightwidth,.ms-buttonheightwidth2 Hope this help you. Thanks! Avinash