.wp-block-buttons>.wp-block-button {
    display: none;
}

div.is-layout-constrained.wp-container-34.wp-block-group.alignwide.has-background-background-color.has-background {
    display: none !important;
}

div.is-layout-constrained.wp-container-21.wp-block-group.has-background-background-color.has-background {
    border-bottom: 1px solid #e9e9e9;
}