Help for portal CSS for iviews

Hi Gurus,

In my portal,I have a senario to display a group of links like this(in portal content area):

WS1

  WS1.1(Category1)

    (create)IView1

    (Change)IView2

    (Dispaly)IView3

WS2

  WS2.1(Category2)

    (create)IView1

    (Change)IView2

    (Dispaly)IView3

WS3

  WS3.1(Category3)

    (create)IView1

    (Change)IView2

    (Dispaly)IView3

(here iViews are Transaction iviews and I am using worksetmap to display icons for main Worksets  )

I need to give some spacing between links '(create)IView1','(create)IView2' etc...

Using theme editor I am able to change the size of the font but not able to provide spacing between the links?

like

  WS1

  WS1.1

    (create)IView1

    (Change)IView2

    (Dispaly)IView3

          etc...

When I checked the page using firebug, the CSS's >.urTxtStd is the property which is responsible for this.but no line space/height property inside this

I tried with Theme editor, 'Complex elements>iView trays" but it is not making any change.

Thanking you in advance

Ram