body {
  position: relative;
}

.original {
  display: flex;
  flex-wrap: wrap;
  margin: 0 0.5em;
  justify-content: center;
}

.original img {
  width: 100%;
  max-width: 500px;
}

.zoom {
  position: absolute;
  top: 0;
  width: 100vw;
  height: 100vh;
  background-color: rgba(0, 0, 0, 0.8);
  justify-content: center;
  align-items: center;
  display: none;
}

.zoom img {
  width: 90%;
  border: solid 5px #FFFFFF;
}