css3滚动条scrollbar做一个绚丽多彩的滚动条

::-webkit-scrollbar {
  width:12px;
  height:1px;
}
::-webkit-scrollbar-thumb {
  background-color:#12b7f5;
  background-image:-webkit-linear-gradient(45deg,rgba(255,93,143,1) 25%,transparent 25%,transparent 50%,rgba(255,93,143,1) 50%,rgba(255,93,143,1) 75%,transparent 75%,transparent);
}
::-webkit-scrollbar-track {
  -webkit-box-shadow:inset 0 0 5px rgba(0,0,0,0.2);
  background:#f2f2f2;
}
::-webkit-scrollbar-thumb:hover {
  background-color: #555;
}