:root {
  --cor3: #42c0c4;
  --cor4: #9cca3b;
}

.secao-banners > .conteiner {
  display: flex;
  flex-direction: column;
}

.secao-banners > .conteiner > .banner.cheio {
  order: -2; /* full banner */
}

.secao-banners > .conteiner > .banner-tarja {
  order: -1; /* banner tarja */
}