新手，求帮助_html/css_WEB-ITnose

.page_leftbox{	background-color: #f7f7f7;	background-image: url(images/page_box.gif);	background-repeat: repeat-x;	background-position: bottom;	width: 236px;	height: 217px;	margin-top: 5px;	margin-right: 0px;	margin-bottom: 0px;	margin-left: 0px;}.page_leftbox li{	line-height: 23px;	margin: 10px;	text-align: center;	border-bottom-width: 1px;	border-bottom-style: dashed;	border-bottom-color: #1d7cb6;	list-style-type: none;	color: #a60000;}