#home {
    margin: 0 auto;
    width: 65%;
    min-width: 950px;
    padding: 30px;
    margin-top: 50px;
    margin-bottom: 50px;
    box-shadow: 0 2px 6px rgba(100,100,100,.3);
    opacity: 0.85;
    background-color: aliceblue;
    border-radius: 20px;
}

body {
    color: #000;
    background-color: lightsteelblue;
    font-family: "Helvetica Neue",Helvetica,Verdana,Arial,sans-serif;
    font-size: 12px;
    min-height: 101%;
background-image: url(https://images.cnblogs.com/cnblogs_com/Flutpiggip/1928754/o_210205055241QQ%E5%9B%BE%E7%89%8720210205135041.png);
background-repeat:no-repeat;
background-attachment:fixed;
}