The weird thing about them - it is different for each web browser. What is showing as one color or one font in one browser, it shows as a different color or font on a different browser. And even the same browser, but different (older) versions will show different things as well.
So to some viewers, my website has got to look pretty funky with the different fonts all on the same page. The different font colors - even in the middle of a phrase - is not good either.
I am beginning to think that it is just the way is goes, and I will have to let it be - not all programs and systems are made to work together. But since most of this is just basic, I really don't understand why they can't all have some common ground somewhere.