a#rewards_link {display: none;}
/* colored group box: 25px padding inside + space above & below */
.single-post .wp-block-group.has-background {
    padding: 25px;
    margin-top: 0px;
    margin-bottom: 25px;
}

/* heading inside the box: no gap above, 25px gap below */
.single-post .wp-block-group.has-background .wp-block-heading {
    margin-top: 0;
    margin-bottom: 25px;
}

/* paragraphs inside the box: 25px between them */
.single-post .wp-block-group.has-background p {
    margin-top: 0;
    margin-bottom: 25px;
}

/* last paragraph inside the box: no bottom margin so it stays even */
.single-post .wp-block-group.has-background p:last-child {
    margin-bottom: 0;
}