html {
    background-size: cover;
    background-position: center center;
}
html, body {
    height: 100%;
}
header {
    display: none;
}
section {
    padding-top: 50px;
}
section img {
    max-width: 100%;
}
footer {
    border-top: 1px dashed #A7A6A4;
}