body {
    font-family: -apple-system, BlinkMacSystemFont, "Helvetica Neue", Helvetica, Arial, sans-serif;
    max-width: 850px;
    margin: 40px auto;
    padding: 0 20px;
    line-height: 1.6;
    color: #222;
}

header {
    margin-bottom: 2em;
}

nav {
    margin-bottom: 2em;
    font-size: 1.1em;
}

nav a {
    margin-right: 18px;
    text-decoration: none;
    color: #004c99;
}

nav a:hover {
    text-decoration: underline;
}

h1 {
    margin-bottom: 0.2em;
    font-size: 2.2em;
}

h2 {
    margin-top: 1.8em;
    padding-bottom: 0.2em;
    border-bottom: 1px solid #ccc;
}

img.profile {
    float: right;
    margin-left: 25px;
    width: 300px;
    border-radius: 4px;
    border: 1px solid #ccc;
    padding: 4px;
}

@media (max-width: 650px) {
    img.profile {
        float: none;
        display: block;
        margin: 0 auto 20px auto;
        width: 70%;
    }
}