Chrome footer is too large and visible, but is no element

I've got a masterpage with a grey background, the header has a background image, the content-part is white and the footer is the original grey background. No sticky footers or anything like that, all preceding div's are "clear: both" and all pages display correct on IE, FF and Safari -- except on Chrome

In Chrome, some pages (which is odd to begin with since all pages de开发者_如何学Pythonrive from the same masterpage - using the same structure) show an "enlarged" footer (twice the size). But when I try to "Inspect Element" using Chrome, the engine doesn't see the lower (enlarged) footer part as an element. When I select the entire body element, all normal elements turn blue, except that enlarged footer.

Is it a Chrome issue or am I missing something?