1. I want to bullet the category posts in my sidebar (see www.elektroretailmagazine.nl) and
2. I'd like to make the background of the site black.
(1. I've tried inserting the code
.widget ul {
list-style-type: square !important;
padding-left: 0;
margin-left: 0;
}
in CSS-inserts, but nothing happened.)
(2. I've been fiddeling around with
background: #ffffff in Body Style, but that also didn't work.)

Any help would be appreciated.
Tim