https://www.w3schools.com/jsrEF/event_transition_propertyName.asp
TransitionEvent propertyName Property
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property
https://caniuse.com/mdn-api_transitionevent_propertyname
TransitionEvent API: propertyName | Can I use... Support tables for HTML5, CSS3, etc
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can i use
https://www.w3schools.com/jsrEF/event_transition_elapsedtime.asp
TransitionEvent elapsedTime Property
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property