#body {
                    font-family: 'Franklin Gothic Medium', 'Arial Narrow', Arial, sans-serif;
                    font-size: 50px;
                    display: flex;
                    flex-wrap: wrap;
                    color: aliceblue;
                    }

                #head_line {
                    background-color: rgb(255, 255, 255);
                    margin: 0vh 10vh 0vh 10vh;
                    display: flex;
                    flex-wrap: wrap;
                    align-items: center;
                }

                #control_line {
                    background-color: rgb(61, 61, 61);
                    margin: 0vh 0vh 0vh 0vh;
                    height: 5vh;
                    display: flex;
                    flex-wrap: wrap;
                    justify-content: center;
                    gap: 15%;
                    position: sticky;
                    top: 0px;
                }

                .knopf{
                    margin: 1vh 3vh 1vh 3vh;
                    display: flex;
                    flex-wrap: wrap;
                    flex: 0 0 30;
                    width: 30%;
                    color: rgb(255, 255, 255);

                }

                #main_box {
                    background-color: rgb(131, 131, 131);
                    margin: 0vh 10vh 10vh 10vh;
                    color: white;
                    text-align: center;
                    font-size: 22px;
                }

                table {
                    width: 100%;
                    border-collapse: collapse;
                }

                table, th, td {
                    border: 1px solid white;
                }

                th {
                    text-align: center;
                    height: 50px;
                }

                td {
                    padding: 10px;
                }

                a {
                    color: rgb(255, 255, 255);
                    font-weight: bold;
                    text-decoration: none;
                }

                a:hover {
                    color: blue;
                    text-decoration: underline;
                }