Awkward header bug in IE11 & somewhat in Chrome

If you put IE11 into fullscreen or even just somewhat off the "ideal" size something really weird happens, everything gets blurry that's attached to this bar once it moves when you scroll.

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D2d2883e79_medium

via puu.sh


Under Chrome the font rendering switches from ClearType to Greyscale whenever the Header starts to move, not sure if that's a bug though and more of a limitation.