Sure i know what i need to understand is the defualt behaviour of Adobe Acrobat for link that are on a web page and when converted to PDF, will it bring the colors defined in css or it will ignore the styles applied via css. I hope that is related to Adobe Acrobat and PDF.
Ah OK, that was not clear. I think it uses whatever the current color is for the link when you convert the file, just like when you print it out.
But be aware none of that will be transferred over to the PDF. All the CSS settings will be removed and you'll end up with a static version of the page.