#wrapper {
    width:800px;
    height:950px;
    margin:0 auto;
    background:url("images/wrapper-bg.png");
}
#wrapper:before {
    content:"";
    background:url("images/wrapper-side-borders.png") repeat-y;
    width:802px;
    height:100%;
    margin:0 0 0 -1px;
    z-index:-1;
    position:absolute;
}