body {
    max-width: 42rem;
    margin: 4rem auto;
    padding: 0 1.5rem;

    font-family: Georgia, serif;
    font-size: 20px;
    line-height: 1.7;
    color: #111;
    background: #fafafa;
}

h1, h2, h3 {
    font-weight: normal;
}

h1{font-size: 1.5rem;}

nav {
    margin: 2rem 0;
}

nav a {
    margin-right: 1rem;
    text-decoration: none;
}

img {
    max-width: 100%;
    height: auto;
}

.small{font-size: 1rem; line-height: 1.4rem;}