.layout--deuxcol6633 {
  --gap: 40px;
  display: flex;
  align-items: center;
   flex-wrap: wrap;
   gap: var(--gap);
}

.layout--deuxcol6633 > .layout__region--first, .layout--deuxcol6633 > .layout__region--second {
  flex: 0 1 100%;
}

@media screen and (min-width: 980px) {
  .layout--deuxcol6633 > .layout__region--first {
    flex: 0 1 calc(66% - var(--gap));
  }  
  .layout--deuxcol6633 > .layout__region--second {
    flex: 0 1 calc(33% - var(--gap));
  }
}