*{
    padding: 0px;
    margin: 0px;
    box-sizing: border-box;
}
header>h1, header>h2{
color: greenyellow;
background-color: brown;
text-align: center;
font-family: 'Courier New', Courier, monospace;
padding: 0px 20px;
border: black solid 10px;
border-style: groove;
}
header>h1{
    font-size: 3rem;
}
header>h2{
    font-size: 2rem;
}
nav>ul{
    list-style-type: none;
    display: flex;
    flex-direction: column;
}
nav>ul>li{
    width: 100%;
}
nav>ul>li>a{
    background-color: lightgray;
    display: block;
    text-align: center;
    padding: 10px 0px;
    border: black solid 1px;
    border-style: groove;
}
nav>ul>li>a:active{
    background-color: rgba(169, 169, 169, 0.475);
}

main{
    background-color: rgb(0, 118, 79);
}
main>article{
    padding: 10px 15px;
}
footer{
    background-color: rgb(3, 103, 103);
}
/* surfplatta */
@media screen and (min-width: 600px) {
    header>h1, header>h2{
        background-color: blueviolet;
    }
    main{
        max-width: 700px;
        margin: auto;
    }
    nav>ul{
        flex-direction: row;
    }
    body{
        background-color:rgb(62, 71, 79);
    }
}
/* Dator */
@media screen and (min-width: 1000px) {
    body{
        max-width: 1000px;
        margin: auto;
    }
    header>h1, header>h2{
        background-color: blue;
    }
    
}