body {
    margin: 0;
    font-family: sans-serif
}

.bg-image {
    width: 100%;
    height: 100vh;
    background: url('https://images.unsplash.com/photo-1441974231531-c6227db76b6e?ixlib=rb-1.2.1&ixid=MnwxMjA3fDB8MHxwaG90by1wYWdlfHx8fGVufDB8fHx8&auto=format&fit=crop&w=871&q=80');
    background-position: center;
    background-attachment: fixed;
    background-size: 200%;
}

.container {
    padding: 100px;
}

h1 {
    font-size: 50px;
}

p {
    color: gray;
}

@media (max-width:500px) {
    .container {
        padding: 10px;
    }
}