.crm-kanban-item.error {
    background-color: #ffb6b6;
}
.main-grid-row.main-grid-row-body.error > td.main-grid-cell {
    background-color: #ffb6b6;
}
.main-grid-row.main-grid-row-body.error:hover > td.main-grid-cell {
    background-color: #e29898;
}