html, body {
    background: rgb(149,179,187);
    background: linear-gradient(180deg, rgba(149,179,187,1) 0%, rgba(102,158,171,1) 100%);
    min-height: 100vh;
}

.poster {
    max-height: 88vh;
    max-width: 90vw;
    margin: 3vh 0;
    border: 3px #4e7781 solid;
    -webkit-box-shadow: 0px 10px 41px -22px rgba(255, 255, 255, 0.75);
    -moz-box-shadow: 0px 10px 41px -22px rgba(255, 255, 255, 0.75);
    box-shadow: 0px 10px 41px -22px rgba(255, 255, 255, 0.75);
}

.a-impressum {
    margin: 2vh 0;
    max-height: 2vh;
}