.section-c{
  margin: 6% 7vw;
}

.section-c .gallery{
    display: grid;
    grid-template-columns: repeat(4, 1fr);
}

.section-c .gallery img,
.section-c .gallery a {
  width: 100%;
  height: 100%;
}

.big{
padding: 0.3vw 0.3vw;
}

    .section-c .gallery a:nth-child(2),
    .section-c .gallery a:nth-child(13),
    .section-c .gallery a:nth-child(15),
    .section-c .gallery a:nth-child(17),
    .section-c .gallery a:nth-child(19),
    .section-c .gallery a:nth-child(21){
        grid-column: 3/5;
      }

    .section-c .gallery a:nth-child(1),
    .section-c .gallery a:nth-child(6),
    .section-c .gallery a:nth-child(12),
    .section-c .gallery a:nth-child(14),
    .section-c .gallery a:nth-child(16),
    .section-c .gallery a:nth-child(18),
    .section-c .gallery a:nth-child(20),
    .section-c .gallery a:nth-child(20){
     grid-column: 1/3;
      }


    .section-c .gallery a:nth-child(4),
    .section-c .gallery a:nth-child(10),
    .section-c .gallery a:nth-child(23){
     grid-column: 2/4;
      }


  @media (max-width: 900px){

    .section-c .gallery{
        display: grid;
        grid-template-columns: repeat(2, 1fr);
    }



    .section-c .gallery a:nth-child(1),
    .section-c .gallery a:nth-child(2),
    .section-c .gallery a:nth-child(3),
    .section-c .gallery a:nth-child(4),
    .section-c .gallery a:nth-child(5),
    .section-c .gallery a:nth-child(6),
    .section-c .gallery a:nth-child(9),
    .section-c .gallery a:nth-child(10),
    .section-c .gallery a:nth-child(11),
    .section-c .gallery a:nth-child(12),
    .section-c .gallery a:nth-child(13),
    .section-c .gallery a:nth-child(14),
    .section-c .gallery a:nth-child(15),
    .section-c .gallery a:nth-child(16),
    .section-c .gallery a:nth-child(17),
    .section-c .gallery a:nth-child(18),
    .section-c .gallery a:nth-child(19),
    .section-c .gallery a:nth-child(20),
    .section-c .gallery a:nth-child(21),
    .section-c .gallery a:nth-child(22),
    .section-c .gallery a:nth-child(23),
    .section-c .gallery a:nth-child(13){
        grid-column: 1/3;
        
    }

    

    

    
  }