.heading{
background-color: lightgrey;
font-family: Arial, sans-serif;
text-align: center;
}

.bahnschrift{
font-family: Bahnschrift, sans-serif;
}

.actual_date{
font-size: 2em;
}

.buttons {
font-size: 2em;
width: 200px;
height:80px;
}