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

/* Mobil */
body {
    background-color: lightsteelblue;
}

header>h1,
header>h2 {
    color: red;
    background-color: darkblue;
    text-align: center;
    font-family: 'Courier New', Courier, monospace;
    padding: 0px 20px;
}

header>h1 {
    font-size: 3rem;
}

header>h2 {
    font-size: 2rem;
}

nav>ul {
    list-style-type: none;
    display: flex;
    flex-direction: column;
}

nav>ul>li>a {
    background-color: lightgray;
    display: block;
    text-align: center;
    padding: 10px 0px;
    border: black solid 1px;
}

nav>ul>li>a:active {
    background-color: darkgrey;
}

main {
    min-height: 500px;
    background-color: darkcyan;
}

main>article {
    padding: 10px 15px;
}

main>ul {
    list-style-type: none;
    height: 450px;
    background-color: blueviolet;

    display: flex;
    flex-direction: row;
    justify-content: center;
    flex-wrap: wrap;
    align-content: space-between;
    gap: 20px 40px
}

main>ul>li {
    background-color: orange;
    font-size: larger;
    font-weight: 900;
    height: 100px;
    width: 100px;
}
footer {
    background-color: lightcyan;
}

/* Surfplatta */
@media screen and (min-width: 600px) {

    header>h1,
    header>h2 {
        background-color: blueviolet;
    }

    nav>ul {
        flex-direction: row;
    }

    main {
        max-width: 700px;
        margin: auto;
    }
}

/* Dator */
@media screen and (min-width: 1000px) {
    body {
        max-width: 1000px;
        margin: auto;
    }

    header>h1,
    header>h2 {
        background-color: deepskyblue;
    }

}