You should not need to access your .CSS, and if you’re not sure how, it’s probably a good idea to leave it alone for now.
What moshu is trying to say is that when you use MSWord you have formattng built in which may not be consistent with your theme. But, I think I can solve your problem.
1. Do as moshu suggested, cut your text and paste in into Notepad. Now save notepad as something.
2. Re-open, refresh your browser AND delete the cache contents from your browser. and
3. try re-pasting directly from Notepad to your post which of course you have erased when you cut. It should work.
If not, you have a panel on your post editor for pastes from Word which cleans the formatting. You can paste to that, and then dump it to the post. I think either will work. Let us know.
I have a simple workaround without messing with the code. First, upload the file to content—>uploads. Your URL if in the root will then be http:www.yourdomain.com/wp-content/uploads/2007/[subfile if any]/filename.mp3
Link your visual word to that URL and voila, your mp3 will play just fine!
