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Layout and page down function

The banner or top frame is enormous.  Why?  When I'm reading the instructable I admit I have the zoom enlarged.  the problem is the banner enlarges.  Now it occupies about 25-35% of the vertical space.  Why am I seeing this thing when I hit page down?  There's absolutely nothing of value on that banner.  Most of us (unless we have zero short term memory) don't need to see this space wasting thing.  Why not have an "opt out" option for it?  Give your readers a choice.  Readers like choices. 

When I use Page Down using Firefox on Win7 it doesn't work accurately.  It goes too far so I'm missing a line or 2.  This has been like this for years.  Its because of that banner.  This happens often on many websites. 
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PDF downloads are nice but an HTML download would be far more useful as then the line could have an adjustable wrap width.  With the PDF the image size is locked.  This is very restricting and so last century.  Consider an HTML download  (minus that space wasting banner...duh) and that would preserve formatting and allow good user control. 
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You have one of the most informative and useful websites on the planet.  You should be proud of it.  I hope you are because its well deserved.  So now lets get it functioning more logically!