.margin_20px { margin-left: 20px }
.px12 {  font-size: 12px; line-height: 18px; color: #666666}
.topics {  font-size: 12px; color: #0066CC}
.px11 {  font-size: 11px; color: #999999}
body {  background-image: url(image_top/back.jpg); background-repeat: no-repeat}