Use motion to improve your website with the Law of Common Fate
Objects moving in unison appear to be related
When multiple objects follow the same trend of motion, they appear to be related or form a group. Synchronization further strengthens this perception, as seen in spectacles like synchronized swimming and the Blue Angels. Conversely, there is contrast if objects are moving in different directions or if some objects are stationary.
In web design, we see the Law of Common Fate in the synchronization of scrolling with viewports and mice with cursors. Likewise, using movement and animation in design can create perceptions of connection or contrast, for either functional or aesthetic purposes (e.g., pop-out menus, pop-up alerts, video backgrounds, animated graphics).
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