.table{border-collapse:collapse;margin-left:auto;margin-right:auto;margin-top:1ex}.column{border:1px solid #d3d3d3;box-sizing:border-box}.column:first-child{background:#f6f6f6;min-width:3em}.column:not(:first-child){min-width:4em}.row:first-child{background:#f6f6f6}#empty_first_cell{background:#fff}.column_selected{border:2px solid #6495ed!important;padding:0}.column_selected input,.column_selected input:active,.column_selected input:focus{border:none;outline:none}