HTML
HTML structure is very simple, a background image is fixed placement class .cd-fixed-bg div element for a class of .cd-scrolling-bg div element portion for scrolling. We can place multiple .cd-fixed-bg and .cd-scrolling-bg group.
<main> 
    <div class="cd-fixed-bg cd-bg-1"> 
        <h1><!-- title goes here --></h1> 
    </div>  
  
    <div class="cd-scrolling-bg cd-color-2"> 
        <div class="cd-container"> 
            <p> 
                Lorem ipsum dolor sit amet, consectetur adipisicing elit. Dolore incidunt suscipit similique, dolor corrupti cumque qui consectetur autem laborum fuga quas ipsam doloribus sequi... 
            </p> 
        </div>  
    </div>  
    ...other divs... 
</main> CSS
How to achieve the background of fixed and scrolling effect? At first, I want to use jQuery, maybe I should make a div to a fixed location, and then change the background image when scrolling the page, but feel bad get. And simple we can do a few lines of CSS, set background background-size value to a fixed element of cover, background-attachment value is set to fixed, thus achieving a single page background fixed and scrolling effect. Consider the following code:
body, html, main { 
    /* important */ 
    height: 100%; 
} 
  
.cd-fixed-bg { 
    min-height: 100%; 
    background-size: cover; 
    background-attachment: fixed; 
    background-repeat: no-repeat; 
    background-position: center center; 
} 
  
.cd-fixed-bg.cd-bg-1 { 
  background-image: url("../img/cd-background-1.jpg"); 
} 
.cd-fixed-bg.cd-bg-2 { 
  background-image: url("../img/cd-background-2.jpg"); 
} 
.cd-fixed-bg.cd-bg-3 { 
  background-image: url("../img/cd-background-3.jpg"); 
} 
 
  
.cd-scrolling-bg { 
    min-height: 100%; 
} 

