Highlighted text box within the post

Hello everyone
Maybe some of my friends can help me.
I have a need to place, when necessary, a highlighted text box within the post as it is on the page (gray box). How could I include this box, taking into account that: I would have to have the option to choose if the text box would be on the left or right, also the background color and also after which paragraph of the post the text box would be. In WordPress I have Jet Engine and CPT made in it along with Elementor. I appreciate all the help/hints possible.
I am not sure if this is the forum for this post.

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