#rm_grouping_bar {
    margin: 0 0 12px 0;
}
#rm_group_by {
    width: 100%;
    padding: 8px;
    border: 1px solid #ccc;
    border-radius: 4px;
    background: #fff;
    box-sizing: border-box;
}
.o_rm_group_title {
    margin: 14px 0 8px 0;
    font-size: 13px;
    font-weight: 700;
    color: #555;
    padding-bottom: 4px;
    border-bottom: 1px solid #e6e6e6;
}