::-webkit-scrollbar {
    /*滚动条整体样式*/
    width : 7px;  /*高宽分别对应横竖滚动条的尺寸*/
    height: 7px;
}
::-webkit-scrollbar-thumb {
    /*滚动条里面小方块*/
    border-radius   : 10px;
    background-color: rgb(205, 205, 205);
    /* background-image: -webkit-linear-gradient(
        45deg,
        rgba(255, 255, 255, 0.2) 25%,
        transparent 25%,
        transparent 50%,
        rgba(255, 255, 255, 0.2) 50%,
        rgba(255, 255, 255, 0.2) 75%,
        transparent 75%,
        transparent
    ); */
}
::-webkit-scrollbar-thumb:hover {
        /*滚动条里面小方块*/
    border-radius   : 10px;
    background-color: rgb(195, 195, 195);
    /* background-image: -webkit-linear-gradient(
            45deg,
            rgba(255, 255, 255, 0.2) 25%,
            transparent 25%,
            transparent 50%,
            rgba(255, 255, 255, 0.2) 50%,
            rgba(255, 255, 255, 0.2) 75%,
            transparent 75%,
            transparent
    ); */
}
::-webkit-scrollbar-track {
    /*滚动条里面轨道*/
    box-shadow   : inset 0 0 10px rgba(0, 0, 0, 0.1);
    background   : #f8f8f8;
    border-radius: 10px;
}