Ever want to link to a specific part of a web page? Well-designed web pages have anchors at the start of each section, which can serve as targets of links.1 You’ve probably seen URLs that end in #something; that fragment identifier, or “frag-id”, refers to a specific anchor on the page.
What’s annoying, though, is that even if an author includes them, they’re hard to discover. Sometimes there’s a table of contents, sometimes not. What I really wanted was a way to just click on the nearest header and grab the link. So I wrote “Header Anchors”.