Add html

[harrydang-03]

I have my own code. When I added it, it crashed
<video class='player' playsinline controls data-poster='https://hieunotes.tayninhkysu.com/img/Bac-Ho.jpg'><source src='https://files.catbox.moe/adoqyw. mp4' type='video/mp4' /></video>

How to add it without trumbowy not recognizing it as text?