HTML and CSS Reference
<blockquote> . . . </blockquote>
Indicates a long quotation from another source. Its content is some number of block-level ele-
ments, such as paragraphs.
In HTML5, the blockquote element is also a sectioning root , meaning it indicates a section
that may have its own outline. That means that heading levels used within blockquote ele-
ments will not contribute to the overall outline of the page.
Flow content, sectioning root, palpable content
Where flow content is expected
HTML5 Global Attributes
Provides a link to information about the source from which the quotation was borrowed.