> > i don't know how to make half transparent div, > > so the background image is viewable but blured. > > here is examples (you probably all know these pages): > http://www.nypl.org/styleguide http://www.happycog.com > > This is actually not CSS, but a graphic trick. Yes, that's it! I was trying with alpha opacity filter before, but this is what i lookking for. Thank you all.