Make Movement Meaningful
Motion can explain a change, guide attention, and show how parts of an interface relate. Its purpose should be clear before an animation is added.
A transition can help someone follow a panel as it opens or understand that a button has responded. Movement becomes distracting when it delays a task or competes with important information.
Use a Consistent Rhythm
Choose a small set of durations and easing patterns. Related interactions should behave predictably across the site.
Keep Controls Responsive
Allow people to change direction or close a panel while an animation is running. Avoid effects that block input until a long sequence finishes.

• Visual Highlights
Balance Expression and Performance
Prefer efficient properties such as opacity and transforms when they suit the effect. Test on a modest mobile device as well as a fast desktop.
Respect Motion Preferences
Provide a reduced-motion experience and keep essential information available without animation. Decorative movement should never be required to understand or use the interface.
Test in Context
Review motion with real content and normal navigation speed. A smooth effect should make the experience easier to follow.

