.gallery-duo .gallery-holder{display:grid;grid-template-columns:1fr;gap:var(--us-gap);}
.gallery-duo .gallery-holder figure{position:relative;margin:0;}
.gallery-duo .gallery-holder figure picture{position:relative;display:block;}
.gallery-duo .us-caption{display:block;padding-top:var(--us-margin-half);}
@media(min-width:660px){
  .gallery-duo .gallery-holder{grid-template-columns:1fr 1fr;grid-template-rows:1fr;}
}