* {
    box-sizing: border-box;
    -moz-box-sizing: border-box;
    -webkit-box-sizing: border-box;
    font-family: Arial, Helvetica Neue, Helvetica, sans-serif;

  }



  html {height: 100%; background-color: #fffcf5;}
  body {margin: 0px; width: 100%; height: 100%; }
  h1 {text-align: center; margin-top: 0px; padding-top:50px; padding-bottom: 30px; color: #747474; font-size: 35px;}
  a  {text-decoration: none; color: black; border:0 ; }
  a:link {border: 0; color: white;}

  #privacy-alert {
    width: 100%;
    height: auto;
    background-color: rgba(110, 110, 110, 0.7);
    color: white;
    display: none;
    position: fixed;
    padding: 10px;
    bottom: 0;
    left: 0;
    right: 0;
    text-align: center;
  }

  #privacy-alert-button {
    cursor: pointer;
  }

  #main {height: 100%;}

  #logo {
    width: 200px;
    height: 50px;
    padding-top: 5px;
    padding-left: 15px;
    float: left;
  }

  .nav-button {
    width: 200px;
    height: 50px;
    float: right;
    color: #747474;
    margin-top: 6px;
    padding: 10px 20px 0px 5px;
    font-size: 20px;
    font-weight: bold;
    display: block;

  }

  .nav-button-active {
    width: 200px;
    height: 50px;
    float: right;
    color: #747474;
    margin-top: 6px;
    padding: 10px 20px 0px 5px;
    font-size: 20px;
    font-weight: bold;
    text-decoration: underline;
    display: block;

  }

  .button-hamburger {
    display: none;
  }

  header {
    width: 100%;
    height: 70px;
    padding-top: 5px;
    padding-left: 5px;
    background-color: #fffcf5;
    text-align: center;
  }



#content {
  min-height: calc(100% - 70px);
  width: 100%;
  background-position: center top;
  background-size: cover;
  background-image: url(https://www.gebr-klages.de/images/hintergrund.jpg);
  color: white;
  font-weight: bold;
  text-shadow: -1px 0 black, 0 1px black, 1px 0 black, 0 -1px black;
  font-size: 25px;
}

#gallery-details {
  height: auto;
  margin-bottom: 50px;
}

#gallery-section {
    width: 100%;
    min-height: 500px;
    height: auto;
    text-align: center;
}

  #gallery-wrapper{
      width: 80%;
      min-height: 450px;
      height: auto;
      text-align: center;
      margin: 0 auto;
  }

  .gallery-mainsite{
    width: 400px;
    height: 300px;
    display:inline-block;
    text-align: center;
    margin-top: 10px;
  }

  .gallery-mainsite img{
    width: 400px;
    height: 300px;
    overflow: hidden;
    cursor: pointer;
    transition-duration: 300ms;
    padding: 10% 10% 0% 10%;
  }

/*
  .gallery-mainsite img:hover{
    width: 310px;
    height: auto;
    overflow: hidden;
    cursor: pointer;
  }
  */

  .gallery-mainsite-text {
    font-weight: bold;
    padding-top: 10px;
    cursor: pointer;
    color: white;
  }

  .gallery_picture {
    -webkit-border-radius:15px;
    -moz-border-radius:20px;
    -o-border-radius:20px;
    -ms-border-radius:20px;
    border-radius: 20px; float:left; margin: 10px 10px;
  }


 #contactdata {
    width: 40%;
    height: auto;
    padding-left: 5%;
    padding-right: 5%;
    float: left;
  }

  #contact-form {
    width: 60%;
    text-align: center;
    height: auto;
    padding-right: 5%;
    float: left;
  }

  #formular-button {
      width: 250px;
      height: 50px;
      border: 3px solid white;
      margin-top: 45px;
      padding-top: 10px;
      text-align: center;
      color: white;
      font-weight: bold;
  }


  #imprint {
    min-height: 600px;
    padding-left: 5%;
    padding-right: 5%;
    text-align: center;
  }



  input {
    width: 100%;
    height: 30px;
    font-size: 25px;
  }

  textarea {
    width: 100%;
    height: 200px;
    font-size: 25px;
  }

  .success-message {
    height: 40px;
    color: green;
    font-size: 25px;
  }

  #submit-button {
    width: 100%;
    height: 50px;
    border: 1px solid black;
    color: white;
    font-weight: bold;
    font-size: 25px;
    background-color: green;
    cursor: pointer;
  }

  #back-button {
    width:250px;
    height: 100px;
    float: right;
    border: 3px solid white;
    color: white;
    text-align: center;
    padding-top: 30px;
    margin-top: 5px;
    margin-right: 5px;
  }

  #back-button:hover {
    background-color: rgba(110, 110, 110, 0.5);
    border: 3px solid white;
  }

  .topnav {
    display: block;
  }

  .responsive {
    display: block;
  }

  @media screen and (min-width: 950px) and (max-width: 1430px) {

    #button-start, #button-gallery, #button-company, #button-contact, #button-privacy, #button-imprint {
      width: 120px;
      font-size: 18px;
    }

    .topnav {
      display: block;
    }

    .responsive {
      display: block;
    }


  }

  @media screen and (max-width: 950px) {



    #gallery-wrapper{
      text-align: center;
    }

    .gallery-mainsite{
      width: 300px;
      height: auto;

    }

    .gallery-mainsite img{
      width: 300px;
      height: auto;

    }


    .topnav {
      display: none;
    }

    .responsive {
      display: block;
    }



    #contactdata {
       width: 100%;
       height: 300px;
       float: none;
     }

     #contact-form {
       width: 100%;
       text-align: center;
       height: 600px;
       padding-left: 5%;
       padding-right: 5%;
       float: left;
     }

    .button-hamburger {
      display: block;
      width: 35px;
      height: 10px;
      margin-right: 15px;
      border-top: 5px solid #747474;
      float: right;
      clear: right;
      cursor: pointer;
    }

    #button-start {
      width: 300px;
      height: 40px;
      background-color: rgba(110, 110, 110, 0.5);
      position: absolute;
      right: 0;
      top: 0;
      margin-top: 70px;
      color:white;
    }

    #button-company {
      width: 300px;
      height: 40px;
      background-color: rgba(110, 110, 110, 0.5);
      position: absolute;
      right: 0;
      top: 0;
      margin-top: 110px;
      color:white;
    }

    #button-gallery {
      width: 300px;
      height: 40px;
      background-color: rgba(110, 110, 110, 0.5);
      position: absolute;
      right: 0;
      top: 0;
      margin-top: 150px;
      color:white;
    }

    #button-contact {
      width: 300px;
      height: 40px;
      background-color: rgba(110, 110, 110, 0.5);
      position: absolute;
      right: 0;
      top: 0;
      margin-top: 190px;
      color:white;
    }

    #button-privacy {
      width: 300px;
      height: 40px;
      background-color: rgba(110, 110, 110, 0.5);
      position: absolute;
      right: 0;
      top: 0;
      margin-top: 230px;
      color:white;
    }

    #button-imprint {
      width: 300px;
      height: 40px;
      background-color: rgba(110, 110, 110, 0.5);
      position: absolute;
      right: 0;
      top: 0;
      margin-top: 270px;
      color:white;
    }



  }
