h1{
    font-size:20px;
    margin: 0 0 10px 0;
}

table {
    width: 100%;
    border-collapse:collapse;
    border: 1px solid black;
}

td{
    padding: 5px 5px;
    border: 1px solid black;
}

th{
    border: 1px solid black;
    color: white
}

tr:nth-child(2n){
    background-color: #ddd;
}

thead{
    background-color: rgb(10, 190, 91);
    border: 1px solid black;
}

.zettel{
    border: 1px solid black;
    border-radius: 10px;
    margin: 100px;
    padding: 10px;
    box-shadow: 2px 2px 10px 0px rgba(0,0,0,0.25);
}