Prefixed version: Microsoft Edge build 17063 View Changelog: Build Number 17063 Specifies the blending mode used for each background layer Roadmap Priority: Low — We are still evaluating this technology.
There may be significant spec stabilization, foundational work, or additional community input required before we can begin development.
Unprefixed version: IE 10 , Microsoft Edge build 10240 View Changelog: Build Number 10240 CSS properties for aligning boxes within their container.
Allows for true vertical centering among other features.
Unprefixed version: IE 10 , Microsoft Edge build 10240 View Changelog: Build Number 10240 Applies a CSS filter effect to the content behind an element.
This is not the element's background but the content that would be drawn behind it.
Async/await can be implemented based on a desugaring to generators, as described in the following design doc: https://docs.google.com/document/d/1K38ct2dsx G_9Ofmg Erv Fld4MPDC4Wkr8t Puqm SWu_3Y/edit?
usp=sharing Unprefixed version: Microsoft Edge build 14986 View Changelog: Build Number 14986 Adds the ability to get information about multiple audio tracks, and switch between them using the Audio Track.enabled attributes.
Introduces cascading variables as a new primitive value type that is accepted by all CSS properties, and custom properties for defining them.Unprefixed version: Microsoft Edge build 15063 View Changelog: Build Number 15063 The @viewport rule, in combination with media queries, enabled web developers to optimize the layout of sites and apps for different devices with minimal effort.It generalizes the viewport meta tag to CSS, while being much simpler to understand and without the quirks that exists with the meta tag.Determines names and descriptions of accessible objects to expose via UIA for assistive technologies to describe to users.Unprefixed version: Microsoft Edge build 14393 View Changelog: Build Number 14393 Support for new WAI-ARIA 1.1 roles, states, and properties which define new accessible user interface elements since WAI-ARIA 1.0.