/* 参考地址 https://blog.csdn.net/Wjhsmart/article/details/107768358 */
#home {
    opacity: 0.88;
    box-shadow: 0 2px 6px rgba(100, 100, 100, 0.3);
}
body {
    color: #000;
    background: url() fixed;
    background-size: 100%;
    background-repeat: no-repeat;
    font-family: "Helvetica Neue",Helvetica,Verdana,Arial,sans-serif;
    font-size: 15px;
    min-height: 101%;
}