Let us assume you want to show a specific content of a webpage that shows an example html code. How do you do that ?
If you write the content as it is, it just applies the markup and the html codes itself are not displayed.
There is one solution. Use a tool from accessify.
All you have to do is copy the content of the html that you wish to display in the tool's text area and click convert to Escape characters. It renders the escaped character into that you can use.