.btc1 {  border-color: #C0C0C0 #FFFFFF #FFFFFF; border-top-width: 2px; border-right-width: 0px; border-bottom-width: 0px; border-left-width: 0px}
.btc7 {  border-color: #FFFFFF #FFFFFF #CCCCCC}
.btc7 {  border-style: dashed; border-top-width: 0px; border-right-width: 0px; border-bottom-width: 1px; border-left-width: 0px}
.btc8 {  border-color: #CCCCCC #FFFFFF #FFFFFF #CCCCCC; border-style: dashed; border-top-width: 1px; border-right-width: 0px; border-bottom-width: 0px; border-left-width: 1px}