body {
    background-image: url('hyperborea.jpg');
    background-repeat: no-repeat;
    background-attachment: fixed;
    background-size: 100% 100%;}
}

.button {}

a {
    text-decoration: none;
    color: black;
    font-size: 40px;
    background-color: lightblue;
}

.clickable_image {
    cursor: pointer;
}