1 //自定义滚动条
 2 ::-webkit-scrollbar-corner {
 3   background-color: transparent;
 4 }
 5 
 6 ::-webkit-scrollbar-button {
 7   width: 0;
 8   height: 0;
 9   display: none;
10 }
11 
12 ::-webkit-scrollbar-thumb {
13   width: 2px;
14   background-color: rgba(0,0,0,.2);
15   border-radius: 2px;
16 }
17 
18 ::-webkit-scrollbar {
19   width: 2px;
20   height: 2px;
21 }
22 
23 ::-webkit-scrollbar-track {
24   width: 5px;
25 }
26 
27 ::-webkit-scrollbar:hover {
28   background-color: transparent;
29 }