.section-thank h1 {
    font-size: 4rem;
    line-height: 1;
    margin: 0;
}

@media screen and (min-width: 750px) {
  .section-thank h1 {
    font-size: 6.4rem;
  }
}

.section-thank p {
    font-size: 2.4rem;
    max-width: 60rem;
    margin: 0 auto;
}