[Plugin: WP e-Commerce] fancy_notification

I would like to change the css to the fancy box, but it can’t change :

The file : wpsc-default.css
Original code : `#fancy_notification {
background: none repeat scroll 0 0 #FFFFFF;
border: 4px solid #CCCCCC;
display: none;
height: auto;
left: 0;
position: absolute;
top: 0;
z-index: 9;
}
#fancy_notification #loading_animation {
display: none;
}
#fancy_notification #fancy_notification_content {
display: none;
height: auto;
margin: 0 !important;
padding: 8px;
text-align: left;
width: 300px;
}
#fancy_notification #fancy_notification_content span {
display: block;
font-weight: normal;
margin: 0 0 6px;
}
#fancy_notification #fancy_notification_content a {
display: block;
float: left;
margin-bottom: 3px;
margin-right: 6px;
}`
My code : `/*—–FANCY NOTIFICATION STYLING—–*/
#fancy_notification{
position: absolute;
top: 0;
left: 0;
background: #ffffff ;
border: 1px solid #CE2227;
display: none;
height: auto;
z-index: 9;

}
#fancy_notification #loading_animation{
display: none;
}
#fancy_notification #fancy_notification_content{
display: none;
width: 300px;
padding: 8px;
height: auto;
text-align: left;
margin: 0 !important;
}
#fancy_notification #fancy_notification_content span{
margin: 0 0 6px 0;
display: block;
font-weight: normal;
font-family:Bebas, Arial, Helvetica, sans-serif;
}
#fancy_notification #fancy_notification_content a{
display: block;
float: left;
margin-right: 6px;
margin-bottom: 3px;
}

http://ww.wp.xz.cn/extend/plugins/wp-e-commerce/