참고자료

[kmr5326]

html/css 원형 배치
http://jsfiddle.net/ThiefMaster/LPh33/4/

Element 회전 마우스 이벤트
http://jsfiddle.net/Symphony/pfs12rye/

youtube api reference
https://developers.google.com/youtube/iframe_api_reference?hl=ko

vue-youtube
https://velog.io/@shrewslampe/Vue%EC%97%90%EC%84%9C-%EC%9C%A0%ED%8A%9C%EB%B8%8C-%ED%8A%B8%EB%A0%88%EC%9D%BC%EB%9F%AC-%EB%A7%8C%EB%93%A4%EA%B8%B0

flicking open source
https://naver.github.io/egjs-flicking/ko/