body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
    line-height: 1.6;
}

header {
    background-color: #333;
    color: #fff;
    padding: 20px;
    text-align: center;
}

.parallax {
    height: 500px;
    background-attachment: fixed;
    background-position: center;
    background-repeat: no-repeat;
    background-size: cover;
}

.parallax1 {
    background-image: url('https://images.unsplash.com/photo-1519125323398-675f0ddb6308');
}

.parallax2 {
    background-image: url('https://images.unsplash.com/photo-1499951360447-b19be8fe80f5');
}

.parallax3 {
    background-image: url('https://images.unsplash.com/photo-1506748686214-e9df14d4d9d0');
}


.content {
    padding: 40px;
    text-align: center;
    background-color: #fff;
}

footer {
    background-color: #333;
    color: #fff;
    text-align: center;
    padding: 20px;
}