html {
  cursor: url('https://files-cdn.cnblogs.com/files/yanggb/mouse-plane.gif'), auto
}
/* a {
    color: transparent;
    text-shadow: #111 0 0 5px;
} */
div {
  /* box-shadow: 0 0 0 6px rgba(0, 0, 0, 0.2), 0 0 0 12px rgba(0, 0, 0, 0.2), 0 0 0 18px rgba(0, 0, 0, 0.2), 0 0 0 24px rgba(0, 0, 0, 0.2); // div多重边框 */
}