/* 定制公告栏文字信息 */
.gonggao{
    text-align: center;
    font-size:17px;
    color:blue;
}
.wenzi{
    text-align: center;
    font-size:15px;
}
/*快速返回顶部*/
#back-to-top {
    background-color:#F0FFF0;
    bottom: 0;
    box-shadow: 0 0 6px 	#F0FFF0;
    color:444444 ;
    padding: 10px 10px;
    position: fixed;
    right: 50px;
    cursor: pointer;
}
/*设置背景图片,背景透明度*/
body {
color: #000;
background: url(https://images.cnblogs.com/cnblogs_com/liershuai/1694535/o_2004100827401ZZG15505-1.jpg) fixed;
background-size: 100%;
background-repeat: no-repeat;
font-family: "Helvetica Neue",Helvetica,Verdana,Arial,sans-serif;
font-size: 12px;
min-height: 101%;
}
#home { opacity: 0.80;}