body {
    color: #000;
    background: url(https://timgsa.baidu.com/timg?image&quality=80&size=b9999_10000&sec=1521131218272&di=1b3a06f32dc64e07c2b1d33585c80385&imgtype=0&src=http%3A%2F%2Fwww.chinapoesy.com%2FUploadFiles%2FPoesy%2F20150501_08a67103-6fad-472e-9fc5-1a9ca143dc8d.gif) fixed;
    background-size: 100%;
    background-repeat: no-repeat;
    font-family: "Helvetica Neue",Helvetica,Verdana,Arial,sans-serif;
    font-size: 12px;
    min-height: 101%;
}
#home{width:1120px;margin:100px auto}
#mainContent{width:830px}
#footer{ padding-top: 40px; padding-bottom: 60px;}
.menu{font-size:18px}
.c_b_p_desc{color:#999}
.postTitle{margin-bottom:20px;margin-top:30px;}
.postDesc{margin-bottom:30px;margin-top:10px;color:#999}