/*2019-11-28*/
 .test-1::-webkit-scrollbar {
    /*滚动条整体样式*/
    width : 3px;  /*高宽分别对应横竖滚动条的尺寸*/
    height: 1px;
    }
    .test-1::-webkit-scrollbar-thumb {
    /*滚动条里面小方块
        border-radius   : 10px;
        background-color: skyblue;
        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
        );*/ 
        /*滚动条里面小方块2*/
            border-radius: 10px;
            box-shadow   : inset 0 0 5px rgba(0, 0, 0, 0.2);
            background   : #9d9d9d;
    }
    .test-1::-webkit-scrollbar-track {
    /*滚动条里面轨道*/
    box-shadow   : inset 0 0 5px rgba(0, 0, 0, 0.2);
    border-radius: 10px;
    background   : #ededed;
    }