The Navigation Widget is using the Telerik RadControls to generate the menu's. This could be:
- RadMenu
- RadPanelBar
- RadTreeView
- ...
Based on the Navigation mode you choose, one of these is rendered. Probably you are using the Simple Vertical Menu?
You could override the classes that are generated, or define a Skin.
- Goto the designer of your Navigation Widget
- Add a name (e.g. CustomSKin) into the 'Wrapper CSS' field.
- Check your markup using e.g. Firebug or Chrome Extensions. You will see this prefix added to the markup of your navigation section.
Then you can declare the classes you want to style like this:
.RadPanelBar_CustomSkin .rpRootGroup {
// Your css
}
You could always take a look at the documentation of the RadControls that Telerik offers: http://www.telerik.com/help/aspnet-ajax/panelbar-appearance-css-selectors.html
Kind regards, Daniel Plomp