CSS Font problem with printing

I have changed my color in my CSS to white but when I print the file it开发者_JAVA技巧 shows up as black font. Can anyone tell me why this is? Thanks :)

I used a jquery called PrintArea and my image pops up into a lightbox when I view it. The text inside of that image shows white but when i print to .xps since i`m not using a printer it shows up as black. I also tried printing it off once but it showed black as well.