body{
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
}

header{
        background-color: #333;
        color: white;
        padding: 10px 20px;
        text-align: center;
}

nav{
        background-color: #f4f4f4;
        padding: 10px 10px;
        text-align: center;
}

nav a{
        text-decoration: none;
        color: #333;
        padding: 0 10px;
}

nav a:hover{
        background-color: #ddd;
        border-radius: 5px;
}

section{
    padding: 20px;
}