The domain is content markup, but they are not exactly (X)HTML, though they share a similar look; especially attribute values with {} show the difference.
For further actions, you may consider blocking this person and/or reporting abuse
We're a place where coders share, stay up-to-date and grow their careers.
Tell me, how are they DSLs?
The domain is content markup, but they are not exactly (X)HTML, though they share a similar look; especially attribute values with {} show the difference.