.icon {
  width: 30%;
  margin: 0 auto;
}
@media screen and (min-width: 821px) {
  .block01,
  .block02 {
    width: 42vw;
    max-width: 820px;
    margin: 0 auto;
  }
}
/********************/
@media screen and (min-width: 451px) and (max-width: 820px) {
}