Simple CSS Parallax effect
Create a div block with class 'parallax'
<div class="parallax"></div>
Apply CSS code (use your own background image path)
.parallax {
min-height: 600px;
background-image: url("images/background.jpg");
background-position: 50% 50%;
background-repeat: no-repeat;
background-attachment: fixed;
background-size: cover;
}