height: 100%;
}
.parallax {
/* The image used */
background-image: url('bg.jpg');
/* Full height */
height: 100%;
/* Create the parallax scrolling effect */
background-attachment: fixed;
background-position: center;
background-repeat: no-repeat;
background-size: cover;
}
Scroll Up and Down this page to see the parallax scrolling effect.
This div is just here to enable scrolling.
Tip: Try to remove the background-attachment property to remove the scrolling effect.