* {
  background-color: #ddd;
  box-sizing: border-box;
}


#gallery {
  display: grid;

  grid-template: repeat(6, 1fr)/repeat(6, 1fr);
  grid-gap: 0.5em;
}
@media (max-width: 800px) {
  #gallery {
    display: flex;
    align-items: flex-start;
    flex-wrap: wrap;

  }
  #gallery > div {
    width: 48%;
    margin: 1%;
  }
}
@media (max-width: 800px) and (max-width: 350px) {
  #gallery > div {
    width: 98%;
  }
}

#gallery > div:nth-child(6n + 1) {
  grid-column: span 2;
  grid-row: span 2;
}
#gallery > div:nth-child(2) {
  grid-column: span 3;
  grid-row: span 3;
}
#gallery > div:nth-child(4) {
  grid-column: span 1;
  grid-row: span 2;
}
#gallery > div > a {
  opacity: 0;
  position: absolute;
  color: #000;
  background-color: #000;
  font: bold 2em "Helvetica";
  text-shadow: 0 -1px 5px #fff, -1px 0px 5px #fff, 0 1px 5px #fff, 1px 0px 5px #fff;
  padding: 2rem;
  mix-blend-mode: difference;
  width: 100%;
  height: 100%;
  transition: all ease 1s;
  cursor: default;
}
#gallery > div > img {
  width: 100%;
  min-height: 100%;
  transition: grid-row-start 300ms linear;
  transition: transform 300ms ease;
  transition: all 0.5s ease;
}
#gallery > div:hover img {
  transform: scale(1.0125);
}

#gallery > div {
  overflow: hidden;
  position: relative;
  box-shadow: 0 2px 8px 0 rgba(0, 0, 0, 0.2), 0 3px 20px 0 rgba(0, 0, 0, 0.19);
}
#gallery div,
#gallery a {
  display: flex;
  justify-content: center;
  align-items: center;
  text-decoration: none;
  border: 2px solid #999;
  border-radius: 4px;

}

[id^="lightbox-"] {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background-color: rgba(0, 0, 0, 0.5);
  display: flex;
  opacity: 0;
  transition: opacity 450ms ease-in-out;
  align-items: center;
  justify-content: center;
  pointer-events: none;
}
[id^="lightbox-"]:target {
  opacity: 1;
  pointer-events: inherit;
}
[id^="lightbox-"]:target img {
  filter: blur(0);
}
[id^="lightbox-"] .content {
  max-width: 90%;
  position: relative;
  color: #fff;

}
[id^="lightbox-"] .content:hover > a.close {
  opacity: 1;
  transform: scale(1, 1);
}
[id^="lightbox-"] .content:hover > .title {
  opacity: 1;
  transform: translateY(-3px);
}
[id^="lightbox-"] .content:hover > .title::after {
  opacity: 1;
}
[id^="lightbox-"] .content > * {
  transition: all 450ms ease-in-out;
}
[id^="lightbox-"] img {
  max-height: 90vh;
  max-width: 100%;
  margin: 0;
  padding: 0;
  filter: blur(50px);
  cursor: default;
  border: 2px solid #ddd;
  border-radius: 4px;

}