.left_nav_cn :link    {font-weight:bold;width:140px;height:17px;text-decoration:none;padding:4px 5px 3px 5px;line-height:100%;color:black}
.left_nav_cn :visited {font-weight:bold;width:140px;height:17px;text-decoration:none;padding:4px 5px 3px 5px;line-height:100%;color:black}
.left_nav_cn :hover   {font-weight:bold;width:140px;height:17px;text-decoration:none;padding:4px 5px 3px 5px;line-height:100%;color:white;background-color:black}

.left_nav_en :link    {font-weight:bold;width:140px;height:17px;text-decoration:none;padding:2px 5px 3px 5px;line-height:100%;color:black;font-size:11px}
.left_nav_en :visited {font-weight:bold;width:140px;height:17px;text-decoration:none;padding:2px 5px 3px 5px;line-height:100%;color:black;font-size:11px}
.left_nav_en :hover   {font-weight:bold;width:140px;height:17px;text-decoration:none;padding:2px 5px 3px 5px;line-height:100%;color:white;font-size:11px;background-color:black}