html {
    font-family: Arial, Helvetica, sans-serif;
    margin: 0;
    padding: 0;
}
body {
    margin: 0;
    padding: 0;
}

h1 {
    margin-top: 0;
}

p {
    padding-left: 10px;
    padding-right: 10px;
}

#header {
    text-align: center;
}

#services {
    margin: auto;
}

#footer {
    padding-left: 10px;
}

@media screen and (min-width: 1000px) {
    html {
        background-color: darkgrey;
        background-image: url('background.jpg');
        background-repeat: no-repeat;
        background-attachment: fixed;
        background-size: cover;
        margin-left: 20%;
        margin-right: 20%;
    }
    body {
        background-color: white;
        min-height: 100vh;
    }
}