body {
    background:url("https://pics5.baidu.com/feed/d0c8a786c9177f3e110c753e3a7e7bc29f3d567b.jpeg?token=56ee2d6bbd895cefb10fc65f7f88da93&s=E032359852C426E2C82F1F9E030080A8");
    background-position:center left;
    background-size: cover;
    background-repeat: no-repeat;
    background-attachment:fixed
}
#home {

    margin: 0 auto;
        margin-top: 0px;
        margin-bottom: 0px;
    width: 80%;
    min-width: 949px;
    background-color: #fff;
    padding: 30px;
    margin-top: 50px;
    margin-bottom: 50px;
    box-shadow: 0 2px 6px rgba(77, 77, 77, 0.3);
    opacity: 0.85;

}