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= First headline level with =-character = == Second == === Third === ... (up to "Fifth")
First headline level with =-character
... (up to "Fifth")
If a headline isn't displayed correctly, it is usually because:
there are invisible (whitespace) spaces after the concluding =-character (they can be deleted manually or with "Remove trailing whitespace from each line" edit option).
- the number of =-characters at the front and at the back doesn't match.