.nn          { background-image: url('images/ARR.gif'); background-repeat: repeat-y; 
               background-position: center }
.b.G          { background-image: url('images/B.G.jpg'); background-repeat: repeat; 
               background-position: center }
.nnn         { background-image: url('images/ARR0_2.gif'); background-repeat: repeat-x; 
               background-position: center }