/*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
