.highlight,
.highlight * {
  background-color: yellow !important;
  transition: background-color 0.5s ease !important;
}

/* 隐藏所有滚动条但不影响滚动 */
html,
body,
* {
  scrollbar-width: none;
  /* Firefox */
  -ms-overflow-style: none;
  /* IE/Edge */
}

html::-webkit-scrollbar,
body::-webkit-scrollbar,
*::-webkit-scrollbar {
  display: none;
  /* Chrome/Safari/Opera */
  width: 0;
  height: 0;
  background: transparent;
}