Hi,
You can use the next custom CSS code:
body.single-product {
background-image: url(http://project.brazilianweave.sub.akonsdesigns.com//wp-content/uploads/2016/02/seamless-damask-pattern.png)!important;
background-attachment: fixed;
background-position: center center;
}
https://www.w3schools.com/cssref/css3_pr_background-size.asp
Regards















