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No.293 · Micro-animations

Bookmark Fold

Saving pours colour down the ribbon from the top, drops it into its slot and flips the notch; a small “Saved” note rises.

The prompt

The design brief behind this component — reuse it to regenerate, remix, or explain it.

Build a bookmark toggle (icon button, aria-pressed). The ribbon is an outlined SVG shape with a notched bottom; inside it, clipped to the same shape, a fill rectangle scaled on Y from the top. Saving: the fill pours down from the top (scaleY 0 → 1, 380ms ease-out), the ribbon drops 2px into its slot on a springy curve, the outline stretches a touch and settles (a short scaleY 1.06 → 0.97 → 1 keyframe from the top) like a ribbon catching, and a small amber "Saved" note rises above the button and fades over 1.4s. Unsaving drains the fill quickly upward. Amber (#f59e0b) is the saved colour.

Notes

Interaction
Click, tap, Space or Enter to save and unsave.
Motion
Fill 380ms; drop springy 360ms; catch 520ms after 260ms; note 1.4s.
Accessibility
A toggle button with aria-pressed and a label naming what it saves; the note is decorative. Reduced motion changes state instantly with no note.
Responsive
A fixed-size control that sits inline wherever it's placed; nothing depends on screen width.
On touch
Works the same on touch; there's no hover-only behaviour.

Featured

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