Knowledge · Rule
Severe HTML nesting errors
Package Structure · E-NEST
Definition
Some HTML tags in your book are nested incorrectly (e.g. a paragraph inside another paragraph), which can break rendering.
Why
- Unclosed <p> or <div> causing the next block to nest illegally.
- Block elements placed inside <p>, <span>, or <a> by a visual editor.
- List / table structure broken (li outside ul/ol, td outside tr).
- Copied HTML fragments merged without a normalizing pass.
Impact
May block submission on KDP when this rule fails.
Platforms
| Platform | Result |
|---|---|
| KDP | May reject |
| Apple Books | May reject |
| Google Play | May reject |
| Kobo | Warning |
References
- XHTML content document constraints
- Cermify Rule Set kdp-epub-2026-07
Last updated · 2026-08-03
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