CSS实现固定表格最后一列，并设置上下左右滚动

/*设置表格最后第一列固定*/
#asManageTable tr th:last-child{
    text-align: center;
    position: absolute;
    right: 21px;
}

#asManageTable tr td:last-child{
    text-align: center;
    position: absolute;
    right: 21px;
    border-bottom: none;
}

并设置父标签position: relative