Hello, @uppc,
1. You can change that body background image from XStore >> Theme Settings >> Styling/Colors as per your requirements: https://postimg.cc/WhJ9crzC
2. Please copy and paste the below-given CSS code to XStore >> Theme Settings >> Theme Custom CSS >> Global CSS and check back to your site after clearing the browser cache.
.content-product .product-title a {
height: 50px !important;
}
Regards 8Themes Team.