There is a div with a table inside, as follows:
The result is like this: there is a large piece of space above.
Solution:
After removing the align="center" of the table, it was fine. As follows:

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TheroottaginanHTMLdocumentis.Itservesasthetop-levelelementthatencapsulatesallothercontent,ensuringproperdocumentstructureandbrowserparsing.

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