((p "An" " " "attribute" " " "is" " " "represented" " " "by" " " "a" " " "single" " " "cell." " " "The" " " "first" " " "element" " " "of" " " "the" " " "cell" " " "references" " " "the" " " "attribute" " " "key," " " "the" " " "second" " " "value" " " "the" " " "corresponding" " " "value.") (div (@ (class . "syntax")) (p (em "AttributeKeyValue") " " (strong "=") " " (kbd "(") " " (em "AttributeKey") " " (kbd ".") " " (em "AttributeValue") " " (kbd ")") ".")) (p (em "AttributeKey") " " "and" " " (em "AttributeValue") " " "are" " " (a (@ (href . "00001012930500")) "string" " " "values") ".") (p "An" " " "empty" " " "key" " " "denotes" " " "the" " " "generic" " " "attribute.") (p "A" " " "key" " " "with" " " "the" " " "value" " " (kbd "\"-\"") " " "specifies" " " "the" " " "default" " " "attribute." " " "In" " " "this" " " "case," " " "the" " " "attribute" " " "value" " " "is" " " "not" " " "interpreted.") (p "Some" " " "examples:") (ul (li (kbd "()") " " "represents" " " "the" " " "absence" " " "of" " " "attributes,") (li (kbd "((\"-\" . \"\"))") " " "represent" " " "the" " " "default" " " "attribute,") (li (kbd "((\"-\" . \"\") (\"\" . \"syntax\"))") " " "adds" " " "the" " " "generic" " " "attribute" " " "with" " " "the" " " "value" " " (@L (@H "“") "syntax" (@H "”")) ",") (li (kbd "((\"lang\" . \"en\"))") " " "denotes" " " "the" " " "attribute" " " "key" " " (@L (@H "“") "lang" (@H "”")) " " "with" " " "a" " " "value" " " (@L (@H "“") "en" (@H "”")) ".")))