body {
    color: rgb(181, 238, 248);
    background-color: black;
    background-image: url('bilder/polar-aurora-6983455.jpg');
    background-attachment: fixed;
    background-repeat: no-repeat;
    background-size: cover;
}

h1 {
    text-align: center;
}

h1,
h2,
h3 {
    color: white;
    text-shadow: 1px 0 10px rgb(181, 238, 248);
    clear: both;
}

.kleinesBild {
    height: 200px;
    float: right;
}

.kachel {
    background-color: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-radius: 16px;
    padding: 16px;
    margin-top: 10px;
}

a {
    color: #5bd9ff;
    border: solid 1px #5bd9ff;
}