html,
body {
  background-color: #000000;
  margin: 0;
  padding: 0;
}

#wrapper {
  line-height: 0;
  width: 100%;
  height: auto;
  margin: 0 auto;
  padding: 0;
  -webkit-column-count: 3;
  -webkit-column-gap: 0px;
  -moz-column-count: 3;
  -moz-column-gap: 0px;
  column-count: 3;
  column-gap: 0px;
}

.image {
  width: 100%;
  height: 100%;
  cursor: pointer;
}

.image img {
  width: 100%;
  height: auto;
  opacity: 1;
  -webkit-transition: opacity 1s ease-in-out;
  -moz-transition: opacity 1s ease-in-out;
  -ms-transition: opacity 1s ease-in-out;
  -o-transition: opacity 1s ease-in-out;
  transition: opacity 1s ease-in-out;
}

.image.blank img {
  opacity: 0;
}

#fullscreen {
  width: 100%;
  height: 100%;
  position: fixed;
  top: 0;
  left: 0;
  z-index: 20;
  display: none;
}

#fullscreen.active {
  display: block;
}

#fullscreen img {
  margin: 0 auto;
  display: block;
  position: relative;
}