Hello, I’ve set background video in Sydney theme on my front page and I’m very happy with that. Although I’d like background image for mobile, but I have no idea how to do it. I found on forums way to remove viedo from mobile through code below, but I don’t know how to set image in that place.

`@media only screen and (max-width: 480px) {

#wp-custom-header-video {
display:none;
}

The page I need help with: [log in to see the link]