parentStyleSheet returns the stylesheet object in which the current rule is defined.
A MessageEvent is the interface representing a message received by a target, being a WebSocket or a WebRTC RTCDataChannel
The Window.getComputedStyle() method gives the values of all the CSS properties of an element after applying the active stylesheets and resolving any basic computation those values may contain.
Width (in pixels) of the browser window viewport including, if rendered, the vertical scrollbar.
CSSStyleDeclaration represents a collection of CSS property-value pairs. It is used in a few APIs:
The CSSRule.selectorText property gets the textual representation of the selector for the rule set. This is implemented in a readonly manner; to set stylesheet rules dynamically, see Using dynamic styling information.
The document.close() method finishes writing to a document, opened with document.open().
The Document.dir property is a DOMString representing the directionality of the text of the document, whether left to right (default) or right to left. Possible values are 'rtl', right to left, and 'ltr', left to right.
embeds returns a list of the embedded OBJECTS within the current document.
Enables the style sheets matching the specified name in the current style sheet set, and disables all other style sheets (except those without a title, which are always enabled).
fgColor gets/sets the foreground color, or text color, of the current document.
forms returns a collection (an HTMLCollection) of the <form> elements within the current document.
document.images returns a collection of the images in the current HTML document.
Returns a string containing the date and time on which the current document was last modified.