On the Arnold theme, X-Box post template, the header text has a translucent parallax effect applied. On many of the other post templates the text is simply black.
Is it possible to isolate this feature on the header text, and apply it to the header text on other post and page headers using custom CSS? Essentially so that where the flat black text appears in the header of a page or post, it takes on the parallax image as it’s fill?
I’m not sure I want to do this site wide, but would like to test it on a page or two, therefore can you please;
1/ can you tell me how I can do this for a specific post only
2/ can you tell me how I could apply this for all pages and post headers?