/*关键设置 tbody出现滚动条*/
table tbody {
            display: block;
            height: 280px;
            overflow-y: scroll;
        }
 
        table thead,
        tbody tr {
            display: table;
            width: 100%;
            table-layout: fixed;
        }
 /*关键设置：滚动条默认宽度是16px 将thead的宽度减16px*/
        table thead {
            width: calc(100% - 1em)
        }

/*https://blog.csdn.net/qq_37899792/article/details/90256580*/

.zoom_in_1 {
    transition: transform 0.1s;
  }
  
.zoom_in_1:hover {
    transform: scale(1.6);
 
}
/*https://blog.csdn.net/weixin_44167504/article/details/108416806*/
/*scale(num) >1 bigger，<1 smaller
scaleX()通过x轴定义，仅水平方向缩放
scaleY()通过y轴定义，仅垂直方向缩放
scaleZ()通过z轴定义，定义3d缩放*/