div.wp-block-group.wp-block-group.is-style-card-articolo {
    display: flex;
    flex-direction: column;
    height: 100%;
    overflow: hidden;
}

    .wp-block-group.is-style-card-articolo > .wp-block-group:last-child {
        display: flex;
        flex-direction: column;
        flex-grow: 1;
        width: 100%;
    }

            .wp-block-group.is-style-card-articolo > .wp-block-group:last-child > * {
                width: 100%;
            }

            .wp-block-group.is-style-card-articolo > .wp-block-group:last-child > .wp-block-post-title {
                flex-grow: 1;
            }