* {
    padding: 0px;
    margin: 0px;
    box-sizing: border-box;
    font-size: 1rem;
}

body {
    background-color: gray;
    margin: auto;
    text-align: center;
}

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

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

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

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


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

nav>ul {
    list-style-type: none;
    background-color: aqua;

    display: flex;
    flex-direction: column;
    text-align: center;
    gap: 1px 40px;
    max-width: 400px;
    margin: auto;
}

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

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

main>article {
    padding: 5%;
}

main {
    max-width: 400px;
    margin: auto;
}

main img {
    display: block;
    max-width: 100%;

}

body>footer {
    margin: auto;
    text-align: center;
}

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

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

    body {
        background-color: gray;
    }

    nav>ul {
        flex-direction: row;
        justify-content: center;
        min-width: 768px;
        margin: auto;
        background-color: silver;
        gap: 60px;
    }

    nav>ul>li>a {
        padding: 5px 20px;
        background-color: lightblue;
    }

    main {
        max-width: 768px;
        margin: auto;
        background-color: darkgray;
    }

    main>article {
        padding: 40px;
    }

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

    main>article>section>p {
        padding: 15px;
    }

    main img {
        max-width: 600px;
    }
}

/* Dator */
@media screen and (min-width: 1024px) {

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

    body {
        background-color: gray;
        margin: auto;
    }

    nav>ul {
        min-width: 1024px;
        background-color: goldenrod;
    }

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

    main {
        min-width: 1024px;
        background-color: gold;
    }

    main>article>section> {
        display: flex
    }

    body>footer {
        margin: auto;
        text-align: center;
    }
}