# ri > Nokogiri::HTML5::DocumentFragment

## [Nokogiri::HTML5::DocumentFragment](https://www.chedong.com/phpMan.php/perldoc/Nokogiri%3A%3AHTML5%3A%3ADocumentFragment/markdown) < [Nokogiri::HTML4::DocumentFragment](https://www.chedong.com/phpMan.php/perldoc/Nokogiri%3A%3AHTML4%3A%3ADocumentFragment/markdown)

(from /home/chedong/.local/share/rdoc)
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Since v1.12.0

💡 HTML5 functionality is not available when running JRuby.
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## Class methods:

  new
  parse

## Instance methods:

  document
  errors
  serialize

## Attributes:

  attr_accessor document
  attr_accessor errors