html {
    font-family: system-ui, sans-serif;
    background: #f5f5f5;
}
body {
    margin: 0;
}
main {
    max-width: 760px;
    margin: 12vh auto;
    padding: 40px;
    background: white;
    border-radius: 12px;
}
h1 {
    font-size: 32px;
}
p {
    line-height: 1.6;
}
a {
    color: inherit;
}