#Galerie div, label {
  position: absolute;
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  overflow: hidden;
}

body {
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  margin: 0;
  padding: 0;
  font-size: 1vmin;
  font-family: "Open Sans", sans-serif;
  color: black;
}
body .message {
  top: 1vw;
  width: 100vw;
  text-align: center;
  font-size: 1.5em;
  line-height: 2em;
}
body .message a {
  color: inherit;
  text-decoration: none;
  border-bottom: 1px solid #444;
}
body .message a:hover {
  border-width: 3px;
}
body .container {
  top: 60%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 80em;
  height: 80em;
}
body .container [class*='item'] {
  width: 33%;
  height: 33%;
  border: 1px solid transparent;
  background: url() center center/cover no-repeat;
  transition: all 0.5s ease-in-out;
  z-index: 0;
}
body .container [class*='item']:hover {
  border: 1px solid white;
  z-index: 1;
}
body .container [class*='item']:nth-of-type(1) {
  top: 0;
  left: 0;
}
body .container [class*='item']:nth-of-type(2) {
  top: 0;
  left: 33%;
}
body .container [class*='item']:nth-of-type(3) {
  top: 0;
  left: 66%;
}
body .container [class*='item']:nth-of-type(4) {
  top: 33%;
  left: 0;
}
body .container [class*='item']:nth-of-type(5) {
  top: 33%;
  left: 33%;
}
body .container [class*='item']:nth-of-type(6) {
  top: 33%;
  left: 66%;
}
body .container [class*='item']:nth-of-type(7) {
  top: 66%;
  left: 0;
}
body .container [class*='item']:nth-of-type(8) {
  top: 66%;
  left: 33%;
}
body .container [class*='item']:nth-of-type(9) {
  top: 66%;
  left: 66%;
}
body .container input {
  display: none;
}
body .container input:checked + [class*='item'] {
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 1;
}