HTML tag that causes other tags to be rendered as plain text [duplicate]

Answer 1

You can do this with the script element (bolded by me):

The script element allows authors to include dynamic script and data blocks in their documents.

Example:

(Note that the allowed content of the script element is restricted, e.g. you can’t have as text content (it would close the script element).)

Typically, script elements have display:none by default in browser’s CSS, so you’d need to overwrite that in your CSS, e.g.:

script[type="text/plain"] {display:block;}