.wp-block-social-links .wp-social-link span:not(.screen-reader-text) {
  font-size: var(--wp--preset--font-size--small);
}
.wp-block-social-links .wp-social-link span:not(.screen-reader-text):hover {
  color: var(--wp--preset--color--brand-primary);
  text-decoration: underline;
}