Set "background-attachment" underneath the "background-position" property:background-attachment: fixed, scroll;Use "fixed" when you want a background image to persist on the screen even while the ...

Papa's Perspective 5-Minute Tour of CSS3 Background Gradients Major browsers support CSS3 gradients (including Internet Explorer 10), but with different rendering engines, it's still good to have ...

One way to add a background photo to any custom Tumblr theme is to embed a simple CSS tag at the right location in the theme's HTML code.

I forgot to mention that this is an html project only and I am not allowed to use CSS yet. I have seen how to do this in CSS.

Repeat until you have a nice assortment of background colors saved to that folder. Switch to Terminal and repeat the steps to set an image as the window background.