如何设置滚动条样式？

/*****设置滚动条样式*****/::-webkit-scrollbar { width: 12px;}/* 滚动槽 */::-webkit-scrollbar-track {    -webkit-box-shadow: inset 0 0 6px rgba(0,0,0,0.3);    border-radius: 10px;}/* 滚动条滑块 */::-webkit-scrollbar-thumb {    border-radius: 10px; background: rgba(0,0,0,0.1);    -webkit-box-shadow: inset 0 0 6px rgba(0,0,0,0.5);}::-webkit-scrollbar-thumb:window-inactive {    background: rgba(48,184,153,0.4);}