.wp-block-cnb-customslots {
  display: flex;
  flex-wrap: wrap;
  margin-right: -20px;
  margin-bottom: 35px;
}
.wp-block-cnb-customslots .wp-block-cnb-slotitem {
  margin-right: 20px;
  margin-bottom: 20px;
  width: calc(100% / 3 - 20px);
}
@media screen and (max-width: 1000px) {
  .wp-block-cnb-customslots .wp-block-cnb-slotitem {
    width: calc(100% / 2 - 20px);
  }
}