body{
font-family:Arial,sans-serif;
background-image: url("bilder/matterhorn.jpg");
background-size:cover;
background-position:center;
background-attachment:fixed;
padding:20px
}
  header{
background-color:black;
color:aliceblue;
padding:center;
text-align:center;
margin-bottom:30px;
}

.navigation { 
    display: flex; 
    background-color: #221e1e;} 
  
  .navigation li { 
    list-style-type: none; } 
  
    .navigation a { 
        padding: 15px; 
        display: inline-block; 
        color: white; 
        text-decoration: none; } 
    
      
      .navigation a:hover, #akt_tab { 
        background-color: #B3B3B3; 
        text-decoration:underline} 

.item1{
display:flex;
flex-wrap: wrap;
gap: 20px;
justify-content: center;
}






 .item1{
background-color:white ;
border:1px solid;
padding:30px;
width:350px;
height:490px;
object-fit:cover;
text-align:center;
border-radius:5px;
margin-bottom:10px ;
box-shadow:0 2px 5px rgba(0,0,0,0.1)
}