body {
    background-image: url(background\ pic.jpg);
    background-repeat: repeat-x;
    background-position: top;
    background-attachment:fixed;
    font-size: large;
    font-family: 'Gill Sans', 'Gill Sans MT', Calibri, 'Trebuchet MS', sans-serif;
    text-align: justify;
    padding: 0;
}
header {
    background-color: #b0b0b0;
    text-align: center;
}
footer {
    background-color: #b0b0b0;
    text-align: center;
}
.introduction {
    background-color: black; opacity: 0.75;
    padding: 15px;
}
h1 {
    color: brown;
    font-family: 'Gill Sans', 'Gill Sans MT', Calibri, 'Trebuchet MS', sans-serif;
    font-size: 40px;
    text-align: center;
}
h2 {
    color: brown;
    font-family: 'Gill Sans', 'Gill Sans MT', Calibri, 'Trebuchet MS', sans-serif;
    text-align: center;
}