Jello

The element stretches horizontally and squashes vertically in elastic steps before returning to normal.

Add a "Rubber Band" attention effect (also called rubberband) to [where].
The element should stretch wide and squash short, then spring back through a few smaller elastic steps before settling at its normal size.
Play it once when triggered, and keep the surrounding layout from shifting while it stretches.

The element rocks side to side with tilt like a wobbly object.

Add a "Wobble" attention effect to [where].
The element should rock side to side with a tilt, starting with a big sway that shrinks with each swing until it settles.
Play it once when triggered, and keep neighbouring content from shifting.

The element shears sideways when hovered.

Add a "Skew" hover effect to [where].
The element should shear sideways into a slight slant while the pointer is over it, and straighten when it leaves: quick and smooth.
Keep the text readable while slanted and the surrounding layout from shifting, and show the same effect on keyboard focus.

The element wobbles side to side with slight rotation like a head shaking no.

Add a "Head Shake" attention effect (also called headshake or no shake) to [where].
The element should turn quickly side to side with a slight twist, like a head shaking no, each turn smaller than the last before it settles.
Play it once each time it is triggered, such as on a rejected action, and keep the surrounding layout from moving.

A copy of the element scales up and fades out repeatedly like a radar ripple.

Add a "Ping" effect (also called a radar ping or pulse ring) to [where].
A copy of the element should grow outward and fade away, again and again at a steady pace, while the element itself stays still.
Draw the ring as a separate layer so it never changes the layout, and stop the loop for users who prefer reduced motion.

The element gently scales or fades in and out repeatedly.

Add a "Pulse" effect (also called pulsing) to [where].
The element should gently swell and ease back in a slow, steady rhythm: subtle, with no bounce.
Loop it seamlessly without shifting the surrounding layout, and stop it for users who prefer reduced motion.