Second page problem

Hi all, I hope you can help me, I have created a full-width page with some code copied from the home page, but there is no way that the page will completely unfold. I noticed that even if I duplicate exactly the home page and I see the latter I do not see correctly the opposite of the home page that you see very well. I also noticed that if I create the draft and I see the preview this is clear, as soon as the page is published as if it lost its css. Please help me

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