.zoom {
  cursor: pointer;
}

.modal-dialog {
    max-width: 75%;
}

#lb-back {
  position: fixed;
  top: 0;
  width: 340px;
  height: 500px;
  z-index: 999;
  visibility: hidden;
  opacity: 0;
  transition: all ease 0.4s;
}
#lb-back.show {
  visibility: visible;
  opacity: 1;
}
/*
#lb-img {
  position: relative;
  top: 50%;
  transform: translateY(-50%);
  text-align: center;
}
*/
#lb-img img {
  width: 100%;
  height: auto; 
}

.photo-gris {
filter: grayscale(1);
-webkit-filter: grayscale(1);
}
.photo-gris:hover {
filter: grayscale(0);
-webkit-filter: grayscale(0);
}