* {
    box-sizing: border-box;
  }
  
  body {
    margin: 0;
    font-family: Arial, sans-serif;
  }
  
  header {
    /* background-color: #333; */
    
    background: linear-gradient(rgba(0,0,0,0.7),rgba(0,0,0,0.7)), url("../img/background.jpg");
      background-size: cover;
    height: 20vh;
    margin-bottom: 50px;
    opacity: 90%;
    color: #fff;
    padding: 10px;
    
  }
  header h1{
  text-align: center;
  }
  
  nav ul {
    margin: 0;
    padding: 0;
    list-style: none;
    text-align: right;
  }
  
  nav li {
    display: inline-block;
    margin-left: 20px;
  }
  
  nav a {
    color: #fff;
    text-decoration: none;
  }
  
  main {
    padding: 20px;
  }
  
  section {
    margin-bottom: 30px;
    margin-left: 20px;
  }
  
  section h2 {
    font-size: 24px;
    margin-bottom: 10px;
    
  }
  
  section p {
    font-size: 18px;
    line-height: 1.5;
  }
  
  .gallery {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
  }
  
  .gallery-item {
    margin: 10px;
    text-align: center;
  }
  
  .gallery-item img {
    width: 100%;
    max-width: 300px;
  }
  
  .gallery-item p {
    margin: 10px 0 0 0;
  }
  
  footer {
    background: linear-gradient(rgba(0,0,0,0.7),rgba(0,0,0,0.7)), url("../img/background.jpg");
    background-size: cover;
  height: 10vh;
  opacity: 90%;
    color: #fff;
    text-align: center;
    padding: 10px;
  }
  
  @media only screen and (min-width: 768px) {
    header {
      display: flex;
      justify-content: space-between;
      align-items: center;
      padding: 20px;
    }
  
    nav li {
      margin-left: 40px;
    }
  
    main {
      display: flex;
      flex-wrap: wrap;
      /* justify-content: space-between; */
      align-items: flex-start;
    }
  
    section {
      width: 45%;
      margin-bottom: 60px;
    }
  
    .gallery {
      width: 100%;
      justify-content: space-between;
      
    }
  
    .gallery-item {
      width: 30%;
      margin: 0;
    }
  }
  #kleib_clanok{
  text-decoration: none;
  color: #274a95;
  
  
  }
  .footer-text {
    text-align: center;
    font-size: 16px;
    padding: 15px; 
    padding-bottom: 0;
    margin-top: 10px; 
}
.autor-sign{
color:#eee;
padding-left: 5px;

}

@media only screen and (max-width:365px){
.footer-text{
font-size: 13px;

}
}
@media only screen and (max-width:300px){
.footer-text{
font-size: 10px;

}
}
@media only screen and (max-width:245px){


.autor-sign{

display: none;
}


}
  
  
  
  
  
  
  
  
  
  
  
  #more {display: none;}
  #myBtn{
  border:none;
  font-size: 20px;
  border-radius: 4px;
  
  
  
  }