#gallery {
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
  }

  #gallery img.gallery-img {
    width: 26vw;
    height: auto;
    margin-top: 5vh;
  }

  @media (max-width: 768px) {
    #gallery img.gallery-img {
      width: 40%;
      flex: 1 1 calc(50% - 20px);
    }
  }