Forum:Highlighting effect

Hello all,

On Wikimedia I noticed some buttons have a nice highlighting effect. For example on, when you move your mouse over the buttons 'download', 'use this file', etcetera. I'd like to use that highlight effect on my wiki, for example on the pics on this page, but how? --- Zantam03 ( Talk ) 21:47, May 18, 2012 (UTC)