.photos { 
  
  border:6px solid white;
  border-top: 12px solid white;
  border-bottom: 12px solid white;
  background-color: white;
  column-count: 5;
  column-gap: 0px;
}

.photos img {border:6px solid white;border-bottom:0; max-width: 100%; }

@media (max-width: 800px) {
  .photos { column-count: 4; }
}

@media (max-width: 500px) {
  .photos { column-count: 3;  }
}

@media (max-width: 400px) {
  .photos { column-count: 2; }
}

@media (max-width: 300px) {
  .photos { column-count: 1;}
}