.tableformat tbody tr.utr-detalle td:first-child {
    padding-left:25px;
}

.tableformat tbody tr.utr-detalle.odd td {
    background-color: #DDD;
}

.tableformat tbody tr.utr-detalle.even td {
    background-color: #EFEFEF;
}

.tablesorter tbody tr td .op.expand, 
.tablesorter tbody tr td .op.collapse {
    background-size: 16px;
    float: left;
}