.wp-block-button__link
{
    color: #fff;
    background-color: #32373c;
    border-radius: 9999px;
    box-shadow: none;
    text-decoration: none;
    padding: calc(.667em + 2px) calc(1.333em + 2px);
    font-size: 1.125em;
}
.wp-block-file__button
{
    background: #32373c;
    color: #fff;
    text-decoration: none;
}