제가 따온 소스인데 버튼이 안누러져서요!!! 질문합니다

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제가 따온 주소입니다. 여기서 팝업 소스를 똑같이 따라하려고 긁어왔는데

X버튼이 안눌러집니다...

어떤걸 또 추가해야하나요?

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