.public-container-max{
       position: relative;    margin: 0 auto;    width: 1000px;}.s-nav{
       width:70px;     height: 280px;     position:fixed;    left:50%;    top:69%;    margin-left:535px;    background-color:#333333;}#s-nav-b{
       margin-top:-3px;}#s-nav-c{
       margin-top:-4px;}#s-nav-d{
       margin-top:-4px;    }