How to embed video in wordpress admin?

Question

PHP

Inserting through the post editor in the div block , emptiness .
I insert a clean code (the code of the file itself) appears but, accordingly, without styles.
I found plugins only for popular sites like YouTube.
What options are there?

Answer 1

which video ? where ? where ? divas inside the post - why so viciously dislike VP? describe your question in more detail please.

Answer 2

Video from any source must be inserted into the site. More precisely, on the record page. You can insert it through a text editor (when adding a record), but the video turns out to be tied to the text of the record, and I need it to be with a separate style. There is a post thumbnail on the right side of the screenshot! Is there an option to do the same with a video file?