html {
    background: #f4f5f6;
    font-family: system-ui, sans-serif;
    color: #202428;
}

body {
    margin: 0;
}

main {
    max-width: 760px;
    margin: 80px auto;
    padding: 40px;
    background: white;
    border: 1px solid #dfe3e6;
}

h1 {
    font-size: 36px;
    margin-top: 0;
}

h2 {
    margin-top: 36px;
}

.lead {
    font-size: 18px;
    color: #5b6268;
}

nav {
    margin-top: 40px;
}

nav a {
    margin-right: 24px;
    color: #303840;
}