div.gallery {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-start;
}

div.gallery-item {
  margin: 5px;
  border: 5px double white;
  width: 200px;
}

div.gallery-item:hover {
  margin: 5px;
  border: 5px double #006bff;
  width: 200px;;
}

div.gallery-item img {
  width: 94%;
  height: auto;
  margin: 6px;
}

div.gallery-item div.desc {
  padding: 15px;
  text-align: center;
}

.responsive {
  padding: 0 6px;
  float: left;
  width: 24.99999%;
}

/* The Modal (background) */
.modal {
  display: none; /* Hidden by default */
  position: fixed; /* Stay in place */
  z-index: 1; /* Sit on top */
  padding-top: 100px; /* Location of the box */
  left: 0;
  top: 0;
  width: 100%; /* Full width */
  height: auto; /* Full height */
  overflow: clip; /* Enable scroll if needed */
  background-color: rgb(0,0,0); /* Fallback color */
  background-color: rgba(0,0,0,0.5); /* Black w/ opacity */
  border: 5px double white;
}

/* Modal Content (image) */
.modal-content {
  margin: auto;
  display: block;
  width: 80%;
  max-width: 700px;
  border: 5px double white;
}

/* Caption of Modal Image */
#caption {
  margin: auto;
  display: block;
  width: 80%;
  max-width: 700px;
  text-align: center;
  color: white;
  padding: 10px 0;
  height: 150px;
}

/* Add Animation */
.modal-content, #caption {  
  -webkit-animation-name: zoom;
  -webkit-animation-duration: 0.6s;
  animation-name: zoom;
  animation-duration: 0.6s;
}

@-webkit-keyframes zoom {
  from {transform:scale(1)} 
  to {transform:scale(1)}
}

@keyframes zoom {
  from {transform:scale(1)} 
  to {transform:scale(1)}
}

/* The Close Button */
.close {
  position: absolute;
  top: 15px;
  right: 35px;
  color: white;
  font-size: 20px;
  font-weight: bold;
  transition: 0s;
}

.close:hover,
.close:focus {
  color: #bbb;
  text-decoration: none;
  cursor: pointer;
}

/* Responsive Columns */
@media only screen and (max-width: 700px){
  .responsive {
    width: 49.99999%;
    margin: 6px 0;
  }
  .modal-content {
    width: 100%;
  }
}

@media only screen and (max-width: 500px){
  .responsive {
    width: 100%;
  }
}

/* Clear Floats */
.clearfix:after {
  content: "";
  display: table;
  clear: both;
}