Code inserted in the Embed Code function
<!DOCTYPE html>
<html><head><meta name="viewport" content="width=device-width, initial-scale=1"><style>body, html { height: 100%;}
.parallax {
/* The image used */
background-image: url('https://lh5.googleusercontent.com/TDxmj6wQg19Ph-PWEeKNGNo9XRp-2Y_CNX5yLEjvas_sdATne_R8Ep_go7Mt48KN5XyYe42ijHqiSU39NFNt45pRmMKmI2QLscAvVyUbl1RopSsQZuw=w572');
/* Full height */
height: 100%;
/* Create the parallax scrolling effect */
background-attachment: fixed;
background-position: center;
background-repeat: no-repeat;
background-size: cover;}
</style></head><body>
<div class="parallax"></div>
<div style="height:300px;background-color:gray;font-size:36px">
Scroll Up and Down this section to see the parallax scrolling effect.<br><br>See <a href="https://www.w3schools.com/howto/howto_css_parallax.asp">https://www.w3schools.com/howto/howto_css_parallax.asp</a>
</div><div class="parallax"></div>
</body></html