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1.1. Article headings
1.1.1. Text selection share
1.1.2. Sharing buttons
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1.1.2.3. Reddit
1.1.2.4. Email
1.1.2.5. Others
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1.1.4. Table of contents for subsections
1.1.5. Save to read later
1.1.6. Related tags
1.1.7. Popularity score
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1.1.11. Article summary
1.1.12. Reading progress bar
1.1.13. Author
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1.1.15. Publication date
1.1.16. Kicker
1.1.17. Headline
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1.2.1. Photos
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1.2.1.2. Credits
1.2.1.3. Sharing meta-data
1.2.1.3.1. Title
1.2.1.3.2. Teaser
1.2.1.3.3. Artist's name
1.2.2. Interactives
1.2.2.1. Credits
1.2.3. Puzzles
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1.2.4.1. Inline player
1.2.5. Quotes
1.2.6. Q&A
1.2.7. Links to sources
1.2.8. Videos
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1.2.8.2. Header
1.2.8.3. Title
1.2.8.4. Time duration
1.2.8.5. Description
1.2.8.6. Video player
1.2.8.7. Transcript
1.2.9. Footnotes
1.2.9.1. At footer
1.2.9.2. Inline
1.2.10. Last update time
1.3. Below article
1.3.1. Related articles
1.3.2. Comments
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1.3.2.2. Reply
1.3.2.3. Vote
1.3.2.4. Commenter
1.3.2.4.1. Name
1.3.2.4.2. Position
1.3.2.4.3. Short description
1.3.2.5. Receive notification on reply
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1.4.2. Researchers in article
1.4.2.1. Short biography
1.4.2.2. Social media links
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1.4.3.2. Social media links
1.4.4. Article blurb
1.4.5. Other articles from the same series
1.4.6. Most shared articles
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