Insert MPG video into web page_html/css_WEB-ITnose

I want to insert a video into the webpage, but neither of the two methods works. I don’t know why. Please give me some advice. Or is there any other way?
I don’t know why it can’t be played in XP system, and it seems that IE6 and 360 browsers can’t play it. There is a problem.

There are many methods on the Internet that use this method, but I still can't play it.

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No one answered?

No one answered me how to tie the knot, so sad