* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}


html,
body {
    height: 100%;
    width: 100%;
}

body {
    background-color: beige;
    /* Hintergrundfarbe */
    font-family: sans-serif;
    font-size: 1.2rem;
    /* Schriftgroesse */
    color: black;
}

iframe {
    display: inline-flex;
    width: 99%;
    height: 99%;
    margin: 0.3%;
    padding-left: 0.5rem;
    justify-content: center;
    align-content: stretch;
    align-items: center;

}