Find the nodes that are not to be emogrified.

Removes empty unprocessable tags from the DOM document.

Returns CSS content.

Removes comments from the supplied CSS.

Extracts @import and @charset rules from the supplied CSS. These rules must not be preceded by any other rules, or they will be ignored. (From the CSS 2.1 specification: “CSS 2.1 user agents must ignore any ‘@import’ rule that occurs inside a block or after any non-ignored statement other than an @charset or an @import rule.” Note also that @charset is case sensitive whereas @import is not.)

Maps a CSS selector to an XPath query string.

Copies $cssRule into the style attribute of $node.

Applies $cssRules to $this->domDocument, limited to the rules that actually apply to the document, by placing them as CSS in a <style> element.

Clears all caches.

Purges the visited nodes.

Parses the document and normalizes all existing CSS attributes.

Extracts and parses the individual rules from a CSS string.

Merges styles from styles attributes and style nodes and applies them to the attribute nodes

Searches for all nodes with a style attribute and removes the “!important” annotations out of the inline style declarations, eventually by rearranging declarations.