body {
    font-size: 15px;
    padding: 12000;
    margin: 0;
    font-family: "微软雅黑","仿宋",Arial;
    background: #205424 url(https://timgsa.baidu.com/timg?image&quality=80&size=b9999_10000&sec=1563439660834&di=8d7a30194583914ebe9a61f0468d915c&imgtype=0&src=http%3A%2F%2F5b0988e595225.cdn.sohucs.com%2Fimages%2F20170712%2F4ac4b358a211493da65449b162e3293b.png) no-repeat top center fixed;
    background-size: 150% 150%;
    min-width: 1200px;
}
#home {
margin: 0 auto;
opacity: 0.8;
width: 65%;
min-width: 1080px;
background-color: #fff;
padding: 30px;
margin-top: 50px;
margin-bottom: 50px;
box-shadow: 0 2px 6px rgba(100, 100, 100, 0.3);
}