body {
    height: 100%;
    width: 100%;
    font-size: 1.1em;
    margin: 0px;
    padding: 0px;
    font-family: Verdana, Geneva, sans-serif;
    background-image: url(../img/start.jpg);
    -webkit-background-size: cover;
    -moz-background-size: cover;
    -o-background-size: cover;
    background-size: cover;
    background-attachment: fixed;
    background-repeat: no-repeat;
}


main { 
    height: 70%;
    width: 100%;
    background: rgba(255, 255, 255, 0.8);
    width: 80%;
    height:70%;
        max-width: 800px;
        margin-right: auto;
        margin-left: auto;
        margin-top: 24px;
}

.inhalt {
    text-align: center;
    padding: 5% 5% 5% 5%;
    height:100%;
}

ul {
    list-style-type: none;
    text-align: left;
    display: flex;
    flex-wrap: wrap;
  }
  

.bilder {
    max-width: 720px;
    display: flex;
    flex-wrap: wrap;
    justify-content:flex-start;
    
  }

  img:hover {
    transform: scale(2); 
  }