HTMLStyleElement: sheet property

The read-only sheet property of the HTMLStyleElement interface contains the stylesheet associated with that element.

An StyleSheet is always associated with a HTMLStyleElement, unless its type attribute is not text/css.

Value

A StyleSheet object, or null if none is associated with the element.

html

<html>
  <header>
    <style media="print" />
    …
  </header>
</html>

The sheet property of the associated HTMLStyleElement object will return the StyleSheet object describing it.

Specification
CSS Object Model (CSSOM) # dom-linkstyle-sheet

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