Bryan, yes, I saw it too (from one machine, at least). Parts of the code blocks are getting out of the page. But please don't rush to try to fix it somehow, I know that this can be at least improved from the HTML source. The guide is going to be receiving lots of small refinements in the near future, so there's no point in re-PDFing it every little while.
Blocks
Extensive Blocks documentation now available
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