working on a Wordpress Template from Rockettheme, changes to some parts of the site should only be done by creating a custom.css with the code to override the master. I am new to CSS so plaese bear with me.

Site "is not porn"
http://trashyladycollections.com

I created a custom.css file and added this code
Code:
.rt-showcase-bg {     background: none #fff rgba(0, 0, 0, 0); }  .box3 {     background: url("../images/main/showcase-bg.png") repeat scroll 50% 0 rgba(176, 231, 247, 0.6);     border: 1px solid #CCCCCC;     border-radius: 5px 5px 5px 5px;     box-shadow: 0 0 8px rgba(0, 0, 0, 0.2), 0 0 0 1px rgba(225, 225, 225, 0.1) inset;     color: #3C3D3F; }  .rt-header {     background-color: #fff;     border-bottom: 1px solid #C7C7C7;     box-shadow: 0 0 6px rgba(0, 0, 0, 0.3), 0 6px 0 #D44E4D inset, 0 7px 0 #FFFFFF inset; }
so far it has made the body white but the header area is still a light grey as is the menu, I tried using Firebug but no luck.