How to swap blocks in the mobile version of the drupal site?

Question

Drupal

You need to swap the blocks on drupal, so that exactly the opposite they are located on the mobile phone, not on the desktop.
How can I do that?

Answer 1

.wrapper-topbanner {
  display: flex;
  align-items: flex-start;
  flex-direction: column;
}
.lbanner {
  order: 2;
}
.rbanner {
  order: 1;
}