Few Questions Sidebar and Font

Hello Sakin, my website ist now online @ www.schinderhannes-mtb.org Please look at this picture: http://schinderhannes-mtb.org/wp-content/uploads/Fragen.png 1. How can I reduce the red marked Space on top and on the ride side of the Sidebar with custom css? 2. How can I change the color of the Text-Title? 3. Can I remove the Info "postet in/Veröffentlicht in News/ändern"? Thank you! Dave