.row > .column {
  padding: 0 8px;
}

.row:after {
  content: "";
  display: table;
  clear: both;
}

/* Create four equal columns that floats next to eachother */
.column {
  float: left;
  width: 25%;
}

/* The Modal (background) */
.modal {
  display: none; /* Hidden by default */
  position: fixed; /* Stay in place */
  z-index: 1; /* Sit on top */
  padding-top: 50px; /* Location of the box */
  left: 0;
  top: 0;
  width: 100%; /* Full width */
  height: 100%; /* Full height */
  overflow: auto; /* Enable scroll if needed */
  background-color: rgb(0,0,0); /* Fallback color */
  background-color: rgba(0,0,0,0.9); /* Black w/ opacity */
}

/* Modal Content */
.modal-content {
  position: relative;
  margin: auto;
  padding: 0;
  display: block;
  width: 90%;
  height: 90%;
}

/* The Close Button */
.close {
  color: white;
  position: absolute;
  top: 10px;
  right: 25px;
  font-size: 35px;
  font-weight: bold;
}

.close:hover,
.close:focus {
  color: #999;
  text-decoration: none;
  cursor: pointer;
}

/* Hide the slides by default */
.slide {
  display: none;
  width: 100%;
  height: 100%;
}

/* Next & previous buttons */
.prev,
.next {
  cursor: pointer;
  position: absolute;
  top: 50%;
  width: auto;
  padding: 16px;
  margin-top: -50px;
  color: white;
  font-weight: bold;
  font-size: 20px;
  transition: 0.6s ease;
  border-radius: 0 5px 5px 0;
  user-select: none;
  -webkit-user-select: none;
}

/* Position the "next button" to the right */
.next {
  right: 0;
  border-radius: 5px 0 0 5px;
}

/* On hover, add a black background color with a little bit see-through */
.prev:hover,
.next:hover {
  background-color: rgba(0, 0, 0, 0.8);
  text-decoration: none;
}

/* Number text (1/3 etc) */
.numbertext {
  color: #ffffff;
  font-size: 12px;
  padding: 8px 12px;
  position: absolute;
  top: 0;
  border-radius: 0 0 5px 0;
  background-color: rgba(0, 0, 0, 0.5);
}

/* Caption text */
.caption-container {
  text-align: center;
  font-size: 12px;
  padding: 4px 16px;
  color: white;
}

img.demo {
  opacity: 0.6;
}

img.hover-shadow {
  transition: 0.2s;
}

.hover-shadow:hover {
  transform: scale(1.2);
}

.active,
.demo:hover {
  opacity: 1;
}