How do I create a fixed image background for single row?

I want to have a fixed image on a section of my site. No text on top. I want the page to scroll over the image, without it moving.

I have tried numerous things but just can’t find a way to make it work. The only way I’ve found is to:

1/. Create a row;
2/. Add a text widget;
3/. Place the image as a row background, fixed;
4/. Type repeated returns into the text box until enough of the background image is visible.

This seems like a crazy thing to have to do, without guaranteed results on all bowsers and devices.

I can’t see any widgets that let me simply place a fixed image, without overlaid text (or empty returns).

Can anyone help?

Thank you!