#fourth {
    margin-top: 10px;
}

 #fourth * {
    box-sizing: border-box;
    
}


 
  .gallery_row {
    display: -ms-flexbox; /* IE10 */
    display: flex;
    -ms-flex-wrap: wrap; /* IE10 */
    flex-wrap: wrap;
    padding: 0 4px;
    justify-content: center;
    align-items: normal;
    align-content: stretch;
    margin-bottom: 10px;
  }
  
 
  .gallery_column {
    -ms-flex: 25%; /* IE10 */
    flex: 25%;
    max-width: 25%;
    padding: 0 4px;
    margin-top: 15px;
    margin-bottom: 15px;
  }
  
  .gallery_column img {
    margin-top: 15px;
    vertical-align: middle;
    width: 100%;
    height:100%;
  }
  
  .desc {
    color:rgb(10, 10, 10);
    text-align: center;
    background-color: aqua;
    padding: 5px;
  }
  
  @media screen and (max-width: 800px) {
    .gallery_column {
      -ms-flex: 50%;
      flex: 50%;
      max-width: 50%;
    }
  }
  

  @media screen and (max-width: 600px) {
    .gallery_column {
      -ms-flex: 100%;
      flex: 100%;
      max-width: 100%;
    }
  }