body{
    background-image: url("https://files-cdn.cnblogs.com/files/Unikfox/bilibili_background.bmp");
    background-repeat: repeat;
    background-attachment: fixed;
    background-size:cover;
    cursor: url("https://blog-static.cnblogs.com/files/Unikfox/cursor_icon.ico"),auto;
}

#Snow{
      position: fixed;
      top: 0;
      left: 0;
      width: 100%;
      height: 100%;
      z-index: 99999;
      background: rgba(255,255,240,0.1);
      pointer-events: none;
}