html {
    background-color: #333;
    font-family: helvetica;
}

body{
    border: solid white 8px;
    padding: 0;
}

header{
    background-color: #ddab00;
    color: white;
}

nav{
    display: flex;
    background-color: #cccccc;
}

nav > a{
    background-color: white;
    color: #ddab00;
    border: 1px solid black;
    margin: 5px;
    flex: 1;
    text-align: center;
    text-decoration: none;
}

footer{
    background-color: #ddab00;
    color: white;
    text-align: center;
}

main{
    display: flex;
    flex-direction: column;
    justify-content: center;
    background-color: #808080;
}

@media screen and (min-width: 700px){
    main{
        flex-direction: row;
        flex-wrap: wrap;
    }
}

main > div{
    background-color: white;
    margin: 10px;
    padding: 10px;
}

main > div > img,
main > div > p{
    padding: 0;
}

main > div > a{
    border: grey 1px solid;
    text-decoration: none;
    color: grey;
    text-align: center;
}