body {
    /*y轴重复背景*/
    background-image: url("/static/website-new/images/container-bg-2.jpg");
    background-size: 100%;
    background-repeat: repeat-y;
}
.container-bg {
    background-image: url("/static/website-new/images/container-bg-1.jpg");
    background-position-y: -2px;
    background-repeat: no-repeat;
    background-size: 100%;
}