.tab {border-style: solid; border-width: 0px;            
           -webkit-border-radius: 8px 8px 8px 8px;
	         -moz-border-radius: 8px 8px 8px 8px;
	         -khtml-border-radius: 8px 8px 8px 8px;
	          border-radius: 8px 8px 8px 8px;}