body {
    overflow:hidden;
}

#outercenter {
    position: absolute;
    top: 50%;
    left: 0px;
    width: 100%;
    height: 1px;
    overflow: visible;
}
    
#containercenter {
    width: 1100px;
    height: 650px;
    margin-left: -550px;
    position: absolute;
    top: -350px;
    left: 50%;
    }