At my site, Paul Squillace: Design, Devleop, Deploy!, I seem to find that the links at the top of the page seem to only link the top part of the word and not the whole word itself.
I am not sure I ever experienced this before or know what is going on.
Disclaimer: I don’t know how to fix this. But the problem is not actually with the href links themselves. The problem, I think, is that the “s1” div is overlapping the navigation. See the blue outline on the attached screenshot.