.rotate-icon {
    transition: transform .25s ease;
}

.collapse.show + .rotate-icon,
button[aria-expanded="true"] .rotate-icon {
    transform: rotate(180deg);
}


.l4d-bbdd-block .l4d-bbdd-toggle {
    background-color: #f8f9fa;
    border: 1px solid #dee2e6;
    border-radius: 6px;
    font-weight: 500;
}

.l4d-bbdd-block .l4d-bbdd-body {
    border-left: 1px solid #eee;
    margin-left: 4px;
    padding-left: 10px;
}