Hi - thanks for this plugin... its a great help.
But I'm struggling with the CSS class too.
I've added two classes to my theme's css file: - .transwidget and .no-bullets (full code below).
I have then added the following to the 'Custom CSS classes (separated by spaces):' text box: "no-bullets transwidget"
However the widget doesn't pick up the CSS from the classes. It remains giving each listing the li attributes of the theme, and it also puts a dark background behind the text of each title, as if it were a widget title instead of a listing within the widget.
Can you please tell me what I'm doing wrong.