body {
  box-sizing: border-box;
  
  margin: 0;
  
  height: 100vh;
}


.btn {
  display: inline-block;
  background-color: firebrick;
  padding: 6px 12px;
  color: #fff;
  border-radius: 18px;
  text-decoration: none;
  transition: 0.3s;
}

.btn:hover {
  filter: brightness(1.1);
}

.hes-gallery {
	width:80%;
  display: grid;
  grid-template-columns: 1fr 1fr 1fr 1fr 1fr 1fr;
  grid-gap: 10px;
  padding: 10px;
  columns: 6;
}

.hes-gallery img {
  width: 50%;
  object-fit: cover;
  transition: 0.3s;
  cursor: pointer;
}

.hes-gallery img:hover {
  transform: scale(1.2);
  box-shadow: 2px 2px 6px #555;
}


@media (max-width: 800px) {
  main {
    width: 100%;
  }
  header img {
    width: 80%;
    object-fit: contain;
  }
  .hes-gallery {
    grid-template-columns: 1fr 1fr ;
  }
}

@media (max-width: 500px) {
  .hes-gallery {
    grid-template-columns: 1fr 1fr;
  }
  .hes-gallery img {
  width: 60%;
 
}
}