.student-datatable{min-width:600px}.student-datatable .q-table-container thead tr:first-child th{position:-webkit-sticky;position:sticky;top:0;background:#fff;z-index:1000;text-align:center}.student-datatable .q-table-container .q-table-middle.scroll{max-height:calc(100vh - 250px)}.student-datatable .extra-top-row{position:fixed}.student-datatable .activity-input-td{padding:0}.student-datatable .activity-input{border:none;border-left:1px solid rgba(0,0,0,.12);width:100%;height:100%;padding-right:1em;text-align:right;display:-webkit-box;display:-ms-flexbox;display:flex}.student-datatable .activity-span{display:-webkit-box;display:-ms-flexbox;display:flex;-webkit-box-pack:center;-ms-flex-pack:center;justify-content:center}