.wp-block-cnb-block.two-column {
  display: flex;
}
.wp-block-cnb-block.two-column .wp-block-cnb-block.content {
  width: calc(100% - 300px);
}
.wp-block-cnb-block.two-column aside.wp-block-cnb-aside.sidebar {
  width: 280px;
  margin-left: 20px;
}
@media screen and (max-width: 750px) {
  .wp-block-cnb-block.two-column {
    display: flex;
    flex-direction: column;
  }
  .wp-block-cnb-block.two-column .wp-block-cnb-block.content {
    width: 100%;
    order: 2;
  }
  .wp-block-cnb-block.two-column aside.wp-block-cnb-aside.sidebar {
    width: 100%;
    margin-left: 0;
    order: 1;
  }
}