See any plurkers CCS code by doing the following:

http://www.plurk.com/Users/getCustomCss?user_id=id

where =id is the avatar # of a plurker

right click on the avatar picture on a plurkers profile page and 'copy image location'

then pasted that location:

http://avatars.plurk.com/9829-medium.gif

replace the =id with 9829

http://www.plurk.com/Users/getCustomCss?user_id=9829

will give you the CSS code for my profile (the CSS code changes often ; )