body { 
     background-color: #efefef;
     background-image:url(https://s1.ax1x.com/2020/06/18/NZRlKs.jpg); 
     background-repeat: no-repeat; 
     background-attachment: fixed; 
     background-position: center 0; 
     background-size: cover; 
    padding-top:0px;
  }
/* 定制公告栏时钟位置 */
#clockdiv {
    /* left, center, right */
    text-align: center;
}
#Scroll_info{

    font-style: italic;
}
/* 定制公告栏音乐插件的样式 */
.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;
}
/* 定制返回顶部按键 */
#toTop {
   background: url(//https://images.cnblogs.com/cnblogs_com/shwee/1218109/o_toTop.bmp) no-repeat 0px top;
    width: 57px;
    height: 57px;
    overflow: hidden;
    position: fixed;
    right: 180px;
    bottom: 20px;
    cursor: pointer;
}