body {
    background-color: #f2f2f2;
    margin: 0;
    padding: 0;
    font-family: -apple-system, BlinkMacSystemFont, sans-serif;
}
div {
    width: 600px;
    margin: 5em auto;
    padding: 2em;
    background-color: #ffffff;
    border-radius: 0.5em;
    box-shadow: 2px 3px 7px 2px rgba(0,0,0,0.02);
}
h1.title, p.image {
    text-align: center;
}
a:link {
    text-decoration: none;
}
p.highlight {
    font-weight: bold;
}
p.note {
    font-size: 70%;
}
@media (max-width: 700px) {
    div {
        width: auto;
        margin: 0 auto;
    }
}