自定义滚动条样式

 1   ::-webkit-scrollbar{
 2     width:12px;
 3     background-color:#f1f1f1;
 4   }
 5   /*定义滑块 内阴影+圆角*/
 6   ::-webkit-scrollbar-thumb{
 7     background-color:#cac8c8;
 8     border: 2px solid #f1f1f1;
 9     &:hover{
10       background-color: #797979;
11     }
12   }
13   ::-webkit-scrollbar-button:decrement {//上按钮
14     width: 0px;
15     height: 6.5px;
16     border: 6.5px solid transparent;
17     border-bottom-color: #cac8c8;
18     &:hover{
19       border-bottom-color: #797979;
20     }
21   }
22   ::-webkit-scrollbar-button:increment {//下按钮
23     height: 6.5px;
24     border: 6.5px solid transparent;
25     border-top-color: #cac8c8;
26     &:hover{
27       border-top-color: #797979;
28     }
29   }