body {
    background-color: lightblue;
    font-family: Arial, sans-serif;
    margin: 20px;
}

h1 {
    color: darkblue;
    text-align: center;
    font-family:Cambria, Cochin, Georgia, Times, 'Times New Roman', serif;
}

h2 {
    color: darkblue;
}

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

nav a {
    margin: 10px;
    color: blue;
}

.intro {
    background-color: white;
    padding: 10px;
    border: 1px solid black;
    margin-top: 15px;
}

section {
    background-color: white;
    border: 2px solid gray;
    padding: 15px;
    margin-top: 15px;
    text-align: center;
}

a {
    color: blue;
}

img {
    border: 1px solid black;
}