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


main>table {
    width: 100%;
}

main>table>tbody>tr,
main>table>thead>tr {
    height: 50px;
}

main>table>tbody>tr>th {
    width: 33.33%;
}

main>table>thead>tr>th {
    background-color: rgb(228, 228, 228);
}

main>table,
main>table>tbody>tr>th,
main>table>tbody>tr>td {
    border: black solid 3px;
    border-collapse: collapse;
    text-align: center;
}

/* surfplatta */
@media screen and (min-width: 600px) {
    main>section {
        margin: 30px 10px;
    }
}