title returns the advisory title of the current style sheet.
type specifies the style sheet language for this style sheet.
CSSOM View is a module that allows to manipulate the visual view of a document, in particular its scrolling behavior.
The scroll-behavior CSS property specifies the scrolling behavior for a scrolling box, when scrolling happens due to navigation or CSSOM scrolling APIs. Any other scrolls, e.g. those that are performed by the user, are not affected by this property. When this property is specified on the root element, it applies to the viewport instead.
The CSSKeyframeRule interface describes an object representing a set of style for a given keyframe. It corresponds to the contains of a single keyframe of a @keyframes at-rule. It implements the CSSRule interface with a type value of 8 (CSSRule.KEYFRAME_RULE).
The CSSKeyframesRule interface describes an object representing a complete set of keyframes for a CSS animation. It corresponds to the contains of a whole @keyframes at-rule. It implements the CSSRule interface with a type value of 7 (CSSRule.KEYFRAMES_RULE).
The CSSNamespaceRule.namespaceURI read-only property returns a DOMString containing the text of the URI of the given namespace.
The CSSNamespaceRule.prefix read-only property returns a DOMString with the name of the prefix associated to this namespace. If there is no such prefix, returns  null.
parentStyleSheet returns the stylesheet object in which the current rule is defined.
A CSSRuleList is an (indirect-modify only) array-like object containing an ordered collection of CSSRule objects.
The CSSStyleSheet.deleteRule() method removes a style rule from the current style sheet object.
The elementFromPoint() method of the Document interface returns the topmost element at the specified coordinates.
Returns the last enabled style sheet set; this property's value changes whenever the document.selectedStyleSheetSet property is changed.
Indicates the name of the style sheet set that's currently in use.
The Document.styleSheets read-only property returns a StyleSheetList of CSSStyleSheet objects for stylesheets explicitly linked into or embedded in a document.
Returns a live list of all of the currently-available style sheet sets.