Circular — .ns-curve
SVG <textPath> — the only thing that rotates each glyph to the tangent. JS builds it from the plain text in the markup and keeps that string as the accessible name, so a seal announces once, in order. For badges and seals; never for text the reader has to read in sequence.
Links — .ns-link
The rule draws in from the leading edge: read the token reference. It can also have a direction: wipe across. And for nav and buttons only, the label rolls over: Start learningStart learning.
All three animate the underline, never the text position — a link that moves on hover is a link you have to chase. --roll changes line height, so it stays out of paragraphs.
Citation — .ns-cite
Governor limits are per-transaction, not per-org1Apex Developer Guide — Execution Governors and Limits.developer.salesforce.com — which is why bulkification is the first thing taught.
A real link to a real footnote. The hover card only ever repeats what is at the destination, so nothing is hover-only.
Anchor — .ns-anchor
Present in the DOM at all times with a real name — revealing a control only on hover hides it from touch and keyboard. It fades opacity, never display, and goes inline below 64rem where hover never arrives.