body {
    background: #050000;
}
.alterBildschirm {
    font-size: 30px;
    font-family: courier, terminal, monospace;
    font-weight: bold;
    color: #faf9f6;
    text-shadow: 2px 2px 2px #696967;
    width: 100%; height: 400px;
    background: #0c0c0c;
    padding: 25px;
    border-radius: 20px;
    margin: 20px auto;
    box-shadow: inset -1px 2px 10px 5px rgb(8, 0, 0);
}