body:before {
    background: url(https://img2020.cnblogs.com/blog/2252846/202012/2252846-20201216172301058-2075535693.jpg) center/cover no-repeat;
    content: '';
    background-repeat: no-repeat;
    background-position: center;
    opacity: 0.08;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    -webkit-filter: grayscale(40%);
    -moz-filter: grayscale(40%);
    -ms-filter: grayscale(40%);
    -o-filter: grayscale(40%);
    filter: grayscale(40%);
    filter: gray;
 
    .aplayer {
    font-family: Arial,Helvetica,sans-serif;  /*音乐插件字体*/
    margin: 0px;  /*音乐插件与公告栏左边的边距，0px就是直接抵到公告栏左边的边上*/
    box-shadow: 0 2px 2px 0 rgba(0,0,0,.14), 0 3px 1px -2px rgba(0,0,0,.2), 0 1px 5px 0 rgba(0,0,0,.12);
    border-radius: 2px;
    overflow: hidden;
    -webkit-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
    user-select: none;
    line-height: normal;
}


   
}