Almost everything's said here; but not the conditions : Your navigator's viewport needs to be below - I think - 800 pixels to see it clearly. (The image is 747 pixels high + the banner + the possible margin between them)
Example on a 768px high screen, 642px viewport:
Example on a 1024px high screen, and a higher viewport:
And since the text's position depends on the viewport, it might be completely hidden at some point. (548px and less = hidden message)
Example on a 768px high screen, 642px viewport:
Example on a 1024px high screen, and a higher viewport:
And since the text's position depends on the viewport, it might be completely hidden at some point. (548px and less = hidden message)
