body {
 margin: 0; 
}

.grid {
  width: 50%;
  margin: 0 0 2% 25%;
  padding: 15px;
  
  display: grid;
  grid-template-columns: repeat(4, 200px);
  justify-content: center;
  align-content: center;
  grid-gap: 10px;
  
  border: 2.5px solid white;
  border-radius: 10px;
}

.grid img {
  width: 200px;
  height: 200px;
  cursor: pointer;
  object-fit: cover;
}

.grid img:hover {
  box-shadow: 0px 0px 10px 2.5px;
}

#lightbox {
  position: fixed;
  z-index: 1000;
  top: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, .8);
  display: none;
}

#lightbox.active {
  display: flex;
  justify-content: center;
  align-items: center;
}

#lightbox img {
  max-width: 80%;
  max-height: 70%;
  padding: 4px;
  background-color: black;
  border: 3px solid white;
  border-radius: 5px;
}

hr {
  width: 75%;
  justify-content: center;
  border-top: 1px solid #fff;
}