body {
    background: #F0F4F5;
    font: 18px/1.5 system-ui, sans-serif;
}

main {
    max-width: 960px;
    margin: 0 auto;
    padding: 2rem;
}

h1 {
    font-size: 3rem;
    margin: 2rem 0;
}

p {
    margin: 1rem 0;
}

a:focus {
    outline: 5px solid #FFFF00;
}