Hello

One option is to set a background image to your article. To do so you can add the following to the Custom CSS field of your templates parameters (Extensions -> Templates -> [YourTemplateStyle] -> Custom CSS)....

.com-content-article__body {

    background-image: url("#");

    background-size: contain;

}

Replace # with a URL to your image.

Ciaran

ok is this possible?
Is there a way to only show the background on certain pages, please?

thank you

Hello

You could try creating multiple template styles, assigning the template style with your background to the menu items of your choice. For more details on this topic take a look at... https://www.joomla51.com/tutorials/joomla-basics/creating-multiple-template-styles

Ciaran