Hello everyone, I'm a bit new to designing a website. I'm currently working on a class project and it involves creating a page with a large photo as a background. I searched around and got an idea of how it's generally done. This website: http://www.alley-pfannekuchen.de/ has their navigation bar extending on the x-axis.

When I zoom out I noticed its an image, I think--because at a certain point it stops. But I was wondering is their an easier way (maybe a code?) to have a colored rectangle type of box that repeats?