.shubiao1:hover {
    foreground-color: #7ecef4;
    color: white;
}

.hint {
  font-size: 10px;
  text-align: center;
  line-height: 25px;
  position: absolute;
  z-index: 99;
  top: 0;
  left: 60%;
  width: 25px;
  height: 25px;
  color: #fff;
  border-radius: 50%;
  background-color: #ff3324;
}