picture.responsive-picture{
  display:block;
  width:100%;
  min-width:0;
  margin:0;
}

.has-real-art > picture.responsive-picture,
.site-art-frame > picture.responsive-picture,
.panel-art-real > picture.responsive-picture,
.mini-art > picture.responsive-picture{
  height:100%;
}

picture.responsive-picture > img{
  display:block;
  width:100%;
  max-width:100%;
}