.taitou {
	font-size: 9px;
	border-top-width: thin;
	border-right-width: thin;
	border-bottom-width: thin;
	border-left-width: thin;
	border-top-style: dotted;
	border-right-style: none;
	border-bottom-style: dotted;
	border-left-style: none;
	border-top-color: #6699cc;
	border-right-color: #6699cc;
	border-bottom-color: #6699cc;
	border-left-color: #6699cc;
}