A masonry testimonial wall that physically reflows as you read: expanding one card's quote via 'read more' re-packs every other card into its new shortest-column slot, animated with a FLIP transform so only the cards that actually move ever animate.
Use when a testimonial/quote wall where expanding a card visibly reflows the rest of the layout around it; pick a static quote grid instead if every quote is a fixed, equal height and nothing ever needs to reveal more text.