Screen: width property

Baseline Widely available

This feature is well established and works across many devices and browser versions. It’s been available across browsers since July 2015.

The Screen.width read-only property returns the width of the screen in CSS pixels.

Value

A number.

Examples

js
// Crude way to check that the screen is at least 1024x768
if (window.screen.width >= 1024 && window.screen.height >= 768) {
  // Resolution is 1024x768 or above
}

Notes

Note that not all of the width given by this property may be available to the window itself. When other widgets occupy space that cannot be used by the window object, there is a difference in window.screen.width and window.screen.availWidth. See also screen.height.

Specifications

Specification
CSSOM View Module
# dom-screen-width

Browser compatibility