body 
{
    background-color: #000000;
    font-family: Arial;
    font-size: 11px;
    margin-top: 0px;
    margin-bottom: 0px;
    color: #FFFFFF;
    text-align: center;
}
.mainbg{

background-image:url(images/eye3.jpg);
background-repeat:no-repeat;
background-attachment:fixed;
background-position:center; 


height:auto

}

img.center {   display: block;   margin-left: auto;   margin-right: auto; }