A hand-drawn underline or loop draws itself under the one word in a heading that sells.
Use it for: Everyone: "same day", "free estimate", "actually clean", "walk-ins welcome". Trades and cleaners most. When: One key promise per page, ideally the hero or the offer heading. Don't: Several per screen, decorative words ("quality"), or a word that isn't true for this business. How: An absolutely positioned SVG stroke behind the word (non-scaling stroke, so it stretches to any word); DrawSVG draws it once when seen. Text never moves. Weight: 1.1 KB gzipped (our CSS + JS) + GSAP from jsDelivr: GSAP core 28.3 + DrawSVG 2.2 KB gzipped (shared by every effect on the page). Plugins: DrawSVG.