@import url('https://fonts.googleapis.com/css?family=Roboto');

body {
    font-family: 'Roboto', sans-serif;
    margin: 0;
    padding: 0;
    height: 100%;
}

main {
    max-width: 800px;
    margin: auto;
}

img {
    width: 100%;
    height: auto;
}