@import url('https://fonts.googleapis.com/css2?family=Roboto&display=swap');

body {
    font-family: 'Roboto', sans-serif;
}

header, main, footer {
    max-width: 640px;
    margin: 1rem auto;
    background-color: lightblue;
    padding: 0.7em;
}

main {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1rem;
}

section {
    background-color: white;
    padding: 20px;
}