css修改浏览器滚动条颜色

/滚动条样式/
::-webkit-scrollbar {/滚动条整体样式/
width: 4px; /高宽分别对应横竖滚动条的尺寸/
height: 4px;
}
::-webkit-scrollbar-thumb {/滚动条里面小方块/
border-radius: 5px;
-webkit-box-shadow: inset 0 0 5px rgba(0,0,0,0.2);
background: #2d8cf0;
}
::-webkit-scrollbar-track {/滚动条里面轨道/
-webkit-box-shadow: inset 0 0 5px rgba(0,0,0,0.2);
border-radius: 0;
background: rgba(0,0,0,0.1);
}