The `hyphens` CSS property allows the author to request automatic hyphenation, or to manually insert soft hyphens to explicitly indicate hyphenation opportunities, or to turn off hyphenation. https://developer.mozilla.org/en-US/docs/Web/CSS/hyphens
As of EdgeHTML 16, the ePub viewer inserts automatic hyphens, but with no control (resulting in hyphens where there shouldn't be, like in code). The normal web view uses soft hyphens for manual hyphenation (the default CSS behavior), but does not have automatic hyphenation support. The `hyphens` property is not recognized at all.16 votes
IE (and Edge) support hyphens with ms prefix since version 10
Backdrop Filters (with webkit prefix) are included in EdgeHTML 17 released today (30/04/2018)
Now text-combine-horizontal renames text-combine-upright.
9.1. Horizontal-in-Vertical Composition: the text-combine-upright property
text-combine-upright is now supported in Edge 15.
webkit currently supports the property background-clip: text that can be used to create awesome text filled in using background images, gradients, ect. Its an incredible feature with so many possibilities and I'd like to see supported in other browsers.3 votes
The non-standard -webkit-background-clip: text; is already supported in Microsoft Edge due to interoperability issues.
Please add support for pseudo elements :before and :after for <option> tag in <select>. It works pretty well in all other browsers.
Here is an example for it:
This shipped today with EdgeHTML14, as part of the Windows 10 Anniversary update.
I created a CSS-based grid system for my SVG sprite sheet using transforms, only to revert to transform attributes after it collapsed in IE9+.
Please add support for CSS transformation in SVG.3,648 votes
CSS Transforms on SVG elements are included in EdgeHTML 17 released today (30/04/2018)
Update the IE implementation of Grid Layout to match the current spec. The current implementation from the IE 10 days is outdated.8,727 votes
CSS Grid is included in Edge 16 that was released today as part of the Windows 10 Fall Creators update.
Add support for the viewport-based vmax unit. Supported in all other browsers.385 votes
Preserve 3d transform is still missing from ie11 :(
I can get away with animating every face, but that adds an unreasonable amount of extra hassle and code.253 votes
Support the CSS 'initial' keyword for the display property. Can be seen in this MDN article: https://developer.mozilla.org/en-US/docs/Web/CSS/initial
Very useful for resetting properties and encourages reusable CSS.53 votes
Complete support for the CSS-wide initial keyword shipped in EdgeHTML 13 as part of the Microsoft Edge version included in Windows 10 build 10586 (November 2015).
Introduces cascading variables as a new primitive value type that is accepted by all CSS properties, and custom properties for defining them.5,873 votes
CSS Custom Properties are included in Edge 15, which shipped today (11th April) with Windows 10 Creators Update.
Add the @support @rule
..and while you're there, kick the webkit team to pick up the work on that as well again: https://bugs.webkit.org/show_bug.cgi?id=126636 ;)97 votes
position: sticky is a new way to position elements and is conceptually similar to position: fixed. The difference is that a stickily positioned element behaves like position: relative within its parent, until a given offset threshold is met.4,651 votes
Position: sticky is included in Edge 16.
Add support for the outline-offset property, supported in all other browsers.83 votes
outline-offset is included in Edge 15, which shipped today (11th April) with Windows 10 Creators Update.
CSS properties that control the position and size of replaced content within the content box.4,214 votes
object-fit and object-position shipped in Edge 16. No more stretched images \o/
We recently shipped fixes for a bundle of flexbox-related issues. If you notice anything further that would require our attention, please do not hesitate to reach out to us on Twitter @MSEdgeDev.
Apply filter effects to arbitrary DOM elements.1,427 votes
CSS Filters shipped in EdgeHTML 13 as part of the Microsoft Edge version included in Windows 10 build 10586 (November 2015).
Add appearance property. The CSS appearence defines how elements (particularly form controls) appear by default. By setting the value to none the default appearance can be entirely redefined using other CSS properties.21 votes
Support has been added for mobile starting with Windows Phone 8.1 Update 1
Support CSS's cursor: zoom-in / cursor: zoom-out to show a magnifying glass with a plus / minus, when hovering over an object with that declaration.
Firefox, Chrome, Safari and Opera support cursor: zoom-in / cursor: zoom-out.4 votes
CSS writing-mode has been in IE for a long time (initial implementation in IE5.5,and extended in IE8). In Microsoft Edge we updated the values from the old spec syntax (inherited from SVG) to the latest spec. IE11+ also support the text-combine-horizontal property.
If you ’d like to see a particular feature of the writing modes spec that is not currently supported, please file another issue in this forum.
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