.topnav {
    overflow: hidden;
    background-color: #333;
  }

  .topnav a {
    float: left;
    color: #f2f2f2;
    text-align: center;
    padding: 14px 50px;
    margin-left: 12%;
    text-decoration: none;
    font-size: 17px;

  }

  .topnav a:hover {
    background-color: #ddd;
    color: black;
  }

  .topnav a.active {
    background-color: #4CAF50;
    color: white;
  }

  .header img{
    display: block;
    margin-left: auto;
    margin-right: auto;
    width: 30%;
    margin-bottom: 20px;
  }

  .header h1{
      padding: 20px;
      margin-left: 10%;
  }

  .header{
      background-image: url(bckground.jpg);
  }

  body{
      background: rgb(138, 136, 230);
      margin-left: 10%;
      margin-right: 10%;
  }

  .content{
      background: lightblue;
  }

  .content p{
    text-align: center;
    margin-left: 5%;
    margin-right: 5%;
    margin-top: 0%;
    margin-bottom: 0%;
  }

  .endPage ul{
      list-style-type: none;
  }

  .endPage{
      text-align: center;
      background: rgb(182, 178, 178);
      margin-top: 0%;
  }

  hr{
    background: rgb(182, 178, 178);
  }

  div.gallery {
    margin: 5px;
    border: 1px solid #ccc;
    float: left;
    width: 180px;
  }

  div.gallery:hover {
    border: 1px solid #777;
  }

  div.gallery img {
    width: 100%;
    height: auto;
  }

  div.desc {
    padding: 15px;
    text-align: center;
  }

  .galleryBox{
    margin-right: 5%;
    margin-left: 5%;
    background-color:black;
  }