html, body {
    margin: 0;
    padding: 0;
    background: #f9f9f9;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
    line-height: 1.6;
    color: #333;
}

.wrapper {
    max-width: 700px;
    margin: 5rem auto;
}

.footer {
    text-align: center;
}

ul {
    margin: 0 0 2rem;
    padding: 0;
}

li {
    display: inline-block;
    margin: 0 1rem;
}

a {
    color: inherit;
}