body{
        color:#000;
        background-color:#e6e6e6;
        font-family:"Helvetica Neue",Helvetica,Verdana,Arial,sans-serif;
        font-size:12px;
        min-height:101%;
        background: url(//images.cnblogs.com/cnblogs_com/zhixuepython/1546533/o_f.jpg) fixed;


}

#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);

}