Hang on a sec; lemme experiment ;]
lah dee dahh, funn :D
//edit.
Okay, here's what I found out. [I'm hoping you know basic HTML, because otherwise this won't make much sense to you.]
I did some research on the <span> tag, and the problem is that it doesn't affect anything unless you define it like this: <span style="whatever whatever;">. That means that even if you define something in your stylesheet like this:
CODE
<style type="text/css">
span b, span strong
{font-color: #FFFFFF;}
</style>
it won't work. You can only define span in the stylesheet like so:
CODE
<style type="text/css">
span
{font-color: #FFFFFF;}
</style>
(You don't need to put "font-weight" because the xanga editor will automatically do that for you.)
The problem with this is that it'll affect anything in your text that's in a <span> tag. For Xanga, I'm pretty sure this only means
bolded text,
italic text,
underlined text, and
strikethrough text. This means that if you
do define the span tag like above, all of your bold/italic/underline/strikethrough text will be the same color. And I dun think you can make it any different. <_<
Hope that made sense.