[JSWolf]

Do you have a sample of the code?

If that really is the CSS code, also put in text-indent: 0

p.MsoNormal, li.MsoNormal, div.MsoNormal {
   top-margin: 0;
   bottom-margin: 0;
   left-margin: 0;
   right-margin: 0;
   text-indent: 0
}

That looks a lot cleaner. But if the code in the XML is <p class="MsoNormal"> replace it with <p> and fix the CSS so that entry is

p {
   top-margin: 0;
   bottom-margin: 0;
   left-margin: 0;
   right-margin: 0;
   text-indent: 0
}