@media screen and (max-width: 768px) {
  .div2 {
    width: calc(50% - 24px);
  }
  .div1 {
    margin: 0;
  }
  body .decor-method-block {
    min-width: 250px;
    width: 100%;
    display: inline-flex;
  }
}
@media screen and (max-width: 425px) {
  .div2 {
    width: 100%;
    margin: 0 auto 20px;
  }
}