.Kvv0{background: url(../Pict2/r1.jpg);background-size: cover;cursor: pointer;}.Kvv1{background: url(../Pict2/r2.jpg);background-size: cover;cursor: pointer;}.Kvv2{background: url(../Pict2/r3.jpg);background-size: cover;cursor: pointer;}.Kvv3{background: url(../Pict2/r4.jpg);background-size: cover;cursor: pointer;}