> couple of lines of CSS
This is bit too much to ask. Just check the source it is swollen with Tailwind.
Tailwind maps directly to CSS (well, it is pure CSS) and doesn't require a loading progress for a one-line animation: https://tailwindcss.com/docs/animation
alt Hacker News
Tailwind maps directly to CSS (well, it is pure CSS) and doesn't require a loading progress for a one-line animation: https://tailwindcss.com/docs/animation