Well perhaps I should include a screenshot because when I view the link I included the screen image is clearly going over the thumbs. Your screenshot is not the same as how it appears in my browser.
I see it too. There's another one a few images previous with a similar issue. (titled "Woman holding Nokia Lumina")
And did you try to refresh the browser? Sometimes there is a PNG layer (with the thumb) missing but after refresh everything should be fine :)