body {
    margin: 0;
    background: #f7f7f7;
    color: #222;
    font-family: Charter, 'Bitstream Charter', 'Sitka Text', Cambria, serif;
    font-size: 18px;
    line-height: 1.5;
}

main {
    max-width: 620px;
    margin: 0 auto;
    padding: 48px 24px;
}

h1 {
    position: absolute;
    width: 1px;
    height: 1px;
    overflow: hidden;
    clip: rect(0 0 0 0);
}

section {
    margin-top: 56px;
}

section:first-of-type {
    margin-top: 28px;
}

h2 {
    margin: 0 0 14px;
    font-size: 24px;
    line-height: 1.1;
}

button {
    margin-left: 8px;
    padding: 0;
    border: 0;
    background: none;
    color: #555;
    font-family: inherit;
    font-size: 13px;
    line-height: inherit;
    vertical-align: baseline;
    text-decoration: underline;
    cursor: pointer;
}

img {
    display: block;
    max-width: 100%;
    height: auto;
    margin-bottom: 18px;
}

p {
    margin: 0 0 10px;
}

.links {
    margin-top: 16px;
}

a {
    color: #111;
    font-weight: 500;
}