CSSOM view API

{{DefaultAPISidebar("CSSOM view API")}} 

The CSSOM view API lets you manipulate the visual view of a document, including getting the position of element layout boxes, obtaining the width or height of the viewport through script, and also scrolling an element.

Guides

• Coordinate systems
  • : The coordinate systems used to specify a position in a display context such as a window on a monitor, a viewport on a mobile device, or a position on a sheet of paper when printing.
• Viewport concepts
  • : The concept of the viewport — what it is, its impact in terms of CSS, SVG, and mobile devices — and the difference between the visual viewport and the layout viewport.

Interfaces

• {{domxref("MediaQueryList")}} 
• {{domxref("MediaQueryListEvent")}} 
• {{domxref("Screen")}} 
• {{domxref("CaretPosition")}} 
• {{domxref("VisualViewport")}} 

Extensions to other interfaces

This module adds properties, methods, and events to interfaces defined in other specifications.

Extensions to Window

• {{domxref("Window.devicePixelRatio", "devicePixelRatio")}} 
• {{domxref("Window.innerHeight", "innerHeight")}} 
• {{domxref("Window.innerWidth", "innerWidth")}} 
• {{domxref("Window.matchMedia", "matchMedia()")}} 
• {{domxref("Window.moveBy", "moveBy()")}} 
• {{domxref("Window.moveTo", "moveTo()")}} 
• {{domxref("Window.outerHeight", "outerHeight")}} 
• {{domxref("Window.outerWidth", "outerWidth")}} 
• pageXOffset (see {{domxref("Window.scrollX", "scrollX")}} )
• pageYOffset (see {{domxref("Window.scrollY", "scrollY")}} )
• {{domxref("Window.resizeBy", "resizeBy()")}} 
• {{domxref("Window.resizeTo", "resizeTo()")}} 
• {{domxref("Window.screen", "screen")}} 
• {{domxref("Window.screenLeft", "screenLeft")}} 
• {{domxref("Window.screenTop", "screenTop")}} 
• {{domxref("Window.screenX", "screenX")}} 
• {{domxref("Window.screenY", "screenY")}} 
• {{domxref("Window.visualViewport", "visualViewport")}} 
• {{domxref("Window.scroll", "scroll()")}} 
• {{domxref("Window.scrollBy", "scrollBy()")}} 
• {{domxref("Window.scrollTo", "scrollTo()")}} 
• {{domxref("Window.scrollX", "scrollX")}} 
• {{domxref("Window.scrollY", "scrollY")}} 
• {{domxref("Window/resize_event", "resize")}}  event

Extensions to Document

• {{domxref("Document.elementFromPoint", "elementFromPoint()")}} 
• {{domxref("Document.caretPositionFromPoint", "caretPositionFromPoint()")}} 
• {{domxref("Document.scrollingElement", "scrollingElement")}} 
• {{domxref("Document/scroll_event", "scroll")}}  event
• {{domxref("Document/scrollend_event", "scrollend")}}  event

Extensions to Element

• {{domxref("Element.checkVisibility", "checkVisibility()")}} 
• {{domxref("Element.clientHeight", "clientHeight")}} 
• {{domxref("Element.clientLeft", "clientLeft")}} 
• {{domxref("Element.clientTop", "clientTop")}} 
• {{domxref("Element.clientWidth", "clientWidth")}} 
• {{domxref("Element.currentCSSZoom", "currentCSSZoom")}} 
• {{domxref("Element.getBoundingClientRect", "getBoundingClientRect()")}} 
• {{domxref("Element.getClientRects", "getClientRects()")}} 
• {{domxref("Element.scroll", "scroll()")}} 
• {{domxref("Element.scrollBy", "scrollBy()")}} 
• {{domxref("Element.scrollHeight", "scrollHeight")}} 
• {{domxref("Element.scrollIntoView", "scrollIntoView()")}} 
• {{domxref("Element.scrollLeft", "scrollLeft")}} 
• {{domxref("Element.scrollTo", "scrollTo()")}} 
• {{domxref("Element.scrollTop", "scrollTop")}} 
• {{domxref("Element.scrollWidth", "scrollWidth")}} 
• {{domxref("Element/scroll_event", "scroll")}}  event
• {{domxref("Element/scrollend_event", "scrollend")}}  event

Extensions to HTMLElement

• {{domxref("HTMLElement.offsetHeight", "offsetHeight")}} 
• {{domxref("HTMLElement.offsetLeft", "offsetLeft")}} 
• {{domxref("HTMLElement.offsetParent", "offsetParent")}} 
• {{domxref("HTMLElement.offsetTop", "offsetTop")}} 
• {{domxref("HTMLElement.offsetWidth", "offsetWidth")}} 

Extensions to HTMLImageElement

• {{domxref("HTMLImageElement.x", "x")}} 
• {{domxref("HTMLImageElement.y", "y")}} 

Extensions to Range

• {{domxref("Range.getBoundingClientRect", "getBoundingClientRect()")}} 
• {{domxref("Range.getClientRects", "getClientRects()")}} 

Extensions to MouseEvent

• {{domxref("MouseEvent.clientX", "clientX")}} 
• {{domxref("MouseEvent.clientY", "clientY")}} 
• {{domxref("MouseEvent.offsetX", "offsetX")}} 
• {{domxref("MouseEvent.offsetY", "offsetY")}} 
• {{domxref("MouseEvent.pageX", "pageX")}} 
• {{domxref("MouseEvent.pageY", "pageY")}} 
• {{domxref("MouseEvent.screenY", "screenY")}} 
• {{domxref("MouseEvent.x", "x")}} 
• {{domxref("MouseEvent.y", "y")}} 

This module defines geometric utility methods that apply to the {{domxref("Text")}} , {{domxref("Element")}} , {{domxref("CSSPseudoElement")}} , and {{domxref("Document")}}  interfaces. These GeometryUtils features are not yet implemented in any browser.

Specifications

{{Specifications}} 

See also

• CSS Object Model (CSSOM) API
• CSSOM view module
• CSS overflow module
• CSS overscroll behavior module
• CSS scroll snap module
• {{glossary("Viewport")}} 
• {{glossary("Layout viewport")}} 
• {{glossary("Visual viewport")}} 
• {{cssxref("zoom")}} 
• {{glossary("CSSOM")}} 
• {{glossary("CSS pixel")}} 
• {{glossary("Scroll container")}} 
• {{htmlelement("meta")}}