Studia: http://www.webstyling.it/guide/css/pdf/barra_css.pdf
Altre info: http://www.google.it/#hl=it&sclient=psy-ab&q=modificare+la+barra+scorrimento&oq=modificare+la+barra+scorrimento&aq=f&aqi=q-w1&aql=&gs_l=hp.3..33i21.7245.9438.3.9611.17.15.0.2.2.1.211.2324.0j11j3.14.0...0.0.pumV9gWq7a0&pbx=1&bav=on.2,or.r_gc.r_pw.r_qf.,cf.osb&fp=df2a6a45955aecf4&biw=2144&bih=1057