padding the sub-menus

Hi,

I’m using the plugin with the “demo” theme, i am trying to add some space at the left of the sub-menus so it would not be on the same level as the other content, however i was only able to shift the titles but not the +/- sign, can you tell me how to do that?
Here’s the css lign that i added:
.sidebar-widget #dc_jqaccordion_widget-4-item ul li li a{
padding-left: 52px;
}