Hi, I have the same question, but also a little new to WordPress. How do I change the default page template to change the background image?

I don’t want to mess with the page.php since it’ll be overwritten on new theme updates. I also tried adding this custom CSS code but didn’t work:

#av_section_1 {
background: url(http://*****.jpg) bottom center no-repeat fixed !important;
}

can you help? thanks!