.wp-block-button.is-style-sadone-contact .wp-block-button__link {
    border: 1px solid var(--bleu, #8da0b0);
    background-color: var(--bleu, #8da0b0);
    color: #ffffff;
    transition: .4s;
    border-radius: 8px;
    padding: 6px 20px;
    display: block;
    text-align: center;
}

.wp-block-button.is-style-sadone-contact .wp-block-button__link:hover {
    border-color: var(--bleuSecondary, #648693);
    background-color: var(--bleuSecondary, #648693);
}