[data-rlta-type="accordions"] [role="button"] {
    border-radius: 0;
    background-color: #333;
    color: white;
    border: none;
}

[data-rlta-type="accordions"] [role="button"] * {
    color: inherit;
}

[data-rlta-type="accordions"] [data-rlta-element="panel"] {
    border: none;
}