Added Styles to BC Module Stylesheet, Firebugg shows correct style but not affecting on display?

Question

I have set up a style on the BC module style sheet (on bottom of sheet) for my blog, the issue is specifically for the blog body text. Trying to get the text to display in white. When I update the style sheet and view the site in firefox and then inspect the body of the blog, the style I made is showing correctly IN firebug but the text is still black. It is not changing color. Here's my style code:
.post-body {
    color: #fff;
    font-family: Arial,Helvetica Neue,Helvetica,sans-serif;
    font-size: 16px;
    line-height: 1.2;
    word-wrap: break-word;
    text-rendering: optimizelegibility;
All my other styles for heading, details, sidebar, etc are working as intended. Just can't get the body font color and size to change. Another wierd thing, when I change the font size px  for the style it changes the line spacing NOT the font size. Any one have a clue what is going on here? Here's the custom styles I have added to the module style sheet:
/* My BC Template*/
.blog-container h1{
    font-family: Impact, Haettenschweiler, "Franklin Gothic Bold", "Arial Black", sans-serif;
    font-size: x-large;
    color: #F9D100;
.post-title H2{
    font-family: Arial Black, sans-serif;
    font-size: medium;
    color: #F9D100;
.side-panel H4{
    font-family: Arial Black, sans-serif;
    font-size: medium;
    color: #F9D100;
.post-body {
    color: #fff;
    font-family: Arial,Helvetica Neue,Helvetica,sans-serif;
    font-size: 16px;
    line-height: 1.2;
    word-wrap: break-word;
    text-rendering: optimizelegibility;

Answer 1

This answer from Support cured the problem...
Gaurav Sharma (Adobe Business Catalyst Support)
Feb 20 04:12 (EET)
Thank you for contacting us!
I just see your online shop purchase form, which contains update credit card fields,
http://screencastmb.worldsecuresystems.com/img/2013-02-20_1309.png
As per the field description, it's used fo rupdating CC details, not for purchases.
Remove that system field and reinsert the form, and it should then work
Kind Regards