There are some WordPress blogs where users don’t always have an understanding of HTML tags and styling. They usually write their posts on Microsoft Word or other similar software and then paste it on WordPress, carrying a plethora of ugly tags that break all templates.
Reasoning with them is of no use, they don’t see that God is in the details.The Lego Batman Movie (2017)
Here comes this plugin that I just wrote, encapsulating what was well demonstrated by Dariusz Lyson on Stack Exchange.
Check it out on the wordpress.org plugins repo.