Text Reveal

Words fade in sequentially on page load, often with a blur clearing, as if being generated.

Add a "Text Generate" effect to [where].
The words should fade in one after another while a soft blur clears from each, as if the text is being generated: steady and calm.
Play it once on load, let screen readers read the full text right away, and show it without motion for users who prefer reduced motion.

Text stays pinned while lines fade in and out with scroll progress.

Add a "Sticky Text Fade" effect (also called sticky scroll text opacity fade) to [where].
While the section scrolls, the text block should stay pinned in place and its lines should fade in and out one at a time with the scroll progress.
Tie the fades directly to the scroll position so scrolling back reverses them, and keep every line available to screen readers whatever its opacity.

Animation progress is tied directly to scroll position, so scrolling forward or back plays or rewinds it.

Add a "Scroll-Linked Animation" (also called a scroll-driven animation or scroll scrub) to [where].
The animation should move exactly with the scroll position, so scrolling down plays it forward and scrolling up rewinds it on the spot, with no time-based easing of its own.
Map the whole animation to a clear scroll range, and show a sensible static state for users who prefer reduced motion.

Letters of a title shuffle or move sequentially as the user scrolls through sections.

Add "Scrolling Letters" (also called on-scroll letter animations) to [where].
As the user scrolls through the sections, the letters of the title should roll to their next characters one after another from left to right, tied directly to the scroll position.
Scrolling back up should roll them back, and screen readers should get the current title as plain text.

Moving the pointer across a card uncovers hidden text underneath a mask edge or spotlight.

Add a "Text Reveal Card" effect (also called spotlight text reveal) to [where].
As the pointer moves across the card, a vertical edge should follow it closely and uncover hidden text on one side, smooth and direct with no lag.
On touch devices, where there is no pointer to follow, let a drag or tap reveal the hidden text, and make the hidden text available to screen readers.

Text is replaced by random characters that refresh and gradually resolve into the final word.

Add a "Text Scramble" hover effect (also called text decode or encrypted text) to [where].
When the pointer moves over the text, each letter should flicker rapidly through random characters and settle on its real letter, resolving one after another from left to right.
Keep the text width from jumping while it scrambles, keep screen readers on the real text, and show the same effect on keyboard focus.

Text rotates in 3D perspective following the mouse position.

Add a "Text Tilt" effect (also called perspective text tilt) to [where].
The text should tilt gently in 3D toward the pointer as it moves, following it smoothly, and ease back flat when the pointer leaves.
Keep the tilt subtle so the text stays readable, and leave the text flat on touch devices and for users who prefer reduced motion.