From Web Education Community Group
The <blockquote> element represents a quoted section.
- Content inside a blockquote element must be quoted from another source. If it has address, a cite attribute should present.
cite= valid URL potentially surrounded by spaces
Specifies the address in the quotation source. [Example B]
See also global attributes.
<blockquote> <p>The quote is input here. </p> </blockquote>
With the cite attribute [try it]:
<blockquote cite="http://www.quote.com/sample.html"> <p>The quote is input here. </p> </blockquote>
The HTML5 specification defines the <blockquote> element in 4.5.4 The blockquote element.