css3自定义滚动条样式：

/* 自定义滚动条样式 */

::-webkit-scrollbar {/*滚动条整体样式*/
    width: 8px;     /*高宽分别对应横竖滚动条的尺寸*/
    height: 10px;
}
::-webkit-scrollbar-thumb {/*滚动条里面小方块*/
    border-radius: 10px;
    -webkit-box-shadow: inset 0 0 5px rgba(125,125,125,0.2);
    background: #535353;
    background-image: -webkit-linear-gradient(45deg, rgba(255, 255, 255, .2) 25%, transparent 25%, transparent 50%, rgba(255, 255, 255, .2) 50%, rgba(255, 255, 255, .2) 75%, transparent 75%, transparent);
}
::-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: 10px;
    background: #EDEDED;
}