限定高度并overflow:auto时,溢出滚动时,滚动条出现,对滚动条的样式修改,并只有当鼠标经过时才显示,代码如下
.plan::-webkit-scrollbar {transition: all 1000ms;width: 10px;background-color: #fff;}.plan::-webkit-scrollbar-thumb {background-color: transparent;}.plan:hover ::-webkit-scrollbar-track-piece {/*鼠标移动上去再显示滚动条*/background-color: #fff;border-radius: 6px;}.plan:hover::-webkit-scrollbar-thumb:hover {background-color: #c0cecc;}.plan:hover::-webkit-scrollbar-thumb:vertical {background-color: #c0cedc;border-radius: 6px;outline: 2px solid #fff;outline-offset: -2px;border: 2px solid #fff;}