BuddyPress.org

it’s as I mentioned earleir it’s the classic error:

you say this:
`#bp_activity_bar ul li a:link,`
and you want to apply that to all pseudo class links so do this:

`#bp_activity_bar ul li a:link,a:visited,a:active,a:hover,img {}`

you have actually styled the activity bar :link class and then closed of that selector set and styled the generic pseudo elements

When you use grouping selectors ‘,’ you must re-state the full descendent path each time i.e you must state `#_activity_bar ul li :whatever {}`