.flex-box{display:flex}.flex-box.flex-column{flex-direction:column}.flex-box.flex-center{align-items:center;justify-content:center}.flex-box.flex-vertical-center{align-items:center}.flex-box.flex-end{justify-content:flex-end}.flex-box .flex0{flex:none}.flex-box .flex1{flex:1}.flex-box .flex-between{justify-content:space-between}.el-table .el-table__header tr th{background:#f4f4f5}