Widget - Custom Menu

In the example on this page http://www.berkshiredesigns.com/blog/producers/
Page 5 is the main category and page 4, Producers and Company Info are a sub category of page 5. I would like my custom menu (sub menu) to tab inward. as an unordered list without bullets
Page 5
–page 4
–Company Info

This would do it:

.widget .sub-menu {
  padding-left: 15px;