Parameters

Name	Type	Default	Description
preset	'slideDown' | 'slideUp' | 'fadeIn' | 'scaleIn'	'slideDown'	Animation preset to apply on mount. slideDown drops in from above, slideUp rises from below, fadeIn only fades, and scaleIn fades while scaling up.

Returns

Name	Type	Description
entryClass	string | null	A shared motion class for the entry animation, or null if the element was rendered on initial page load (no animation needed). One of astryx-motion-slide-in-below, astryx-motion-slide-in-above, astryx-motion-fade-in, or astryx-motion-scale-in.