.tab_home {  border-color: #FFFFFF #FFFFFF #FF9900 #FF9900; border-style: solid; border-top-width: 1px; border-right-width: 1px; border-bottom-width: 1px; border-left-width: 1px}
.tab_mb {  border-color: #FFFFFF #FFFFFF #FF9900; border-style: solid; border-top-width: 1px; border-right-width: 1px; border-bottom-width: 1px; border-left-width: 0px}
.tab_feft {  border-color: #FF9900 #FF9900 #FFFFFF; border-style: solid; border-top-width: 1px; border-right-width: 1px; border-bottom-width: 0px; border-left-width: 1px}