.gallery-upper{
    width: 100%;
    height: auto;
    text-align: center;
    padding: 20px 0px;
}
.gallery-upper h1{
    font-size: 50px;
}
.row {
    display: flex;
    flex-wrap: wrap;
    padding: 0 4px;
  }
  
  /* Create four equal columns that sits next to each other */
  .column {
    flex: 25%;
    max-width: 25%;
    padding: 0 4px;
  }
  
  .column img {
    margin-top: 8px;
    vertical-align: middle;
    width: 100%;
    height: auto;
    cursor: pointer;
    transition: transform 0.3s ease;
  }
  .column img:hover {
    transform: scale(1.1);
}
.modal {
  display: none;
  position: fixed;
  z-index: 1000;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, 0.8);
  overflow: auto;
  padding-top: 50px;
}

.modal-content {
  margin: auto;
  display: block;
  max-width: 50%;
  max-height: 70%;
}
  
  /* Responsive layout - makes a two column-layout instead of four columns */
  @media screen and (max-width: 800px) {
    .column {
      flex: 50%;
      max-width: 50%;
    }
    .gallery-upper h1{
        font-size: 30px;
    }
  }
  
  /* Responsive layout - makes the two columns stack on top of each other instead of next to each other */
  @media screen and (max-width: 600px) {
    .column {
      flex: 100%;
      max-width: 100%;
    }
  }