changing hover colour of buttons

Hello

Is there any way to change the colour you get when you hover over the buttons from blue to green?

It’s not a major problem but I would like the player to match the other colours on my site (I’m a bit sad like that).
http://audioscapist.net/
MP3-jPlayer is in jukebox on sidebar.

Cheers.

http://wordpress.org/extend/plugins/mp3-jplayer/