.ordered{border: 1px solid black; background:lightgray; }

.formel{ height: 4.5em;display: table-cell;float: left; border-right: 1px solid gray;text-align: center;}

/*td.first{width:10em}*/

.dummy td {border: 1px solid gray; width: 14%;} .dummy.th{ width: 14%;}

.other{height:4.5em;}