CSS3 tab-size is supported in all other browsers, and defines how many spaces the tab character should consist of.288 votes
The tab-size property is now on the Microsoft Edge backlog with a priority of medium. You can track status updates at https://developer.microsoft.com/en-us/microsoft-edge/platform/status/csstabsizeproperty/
Conic gradients  are useful for a number of effects on the Web that cannot be emulated in any other way (see ). They can be implemented in many graphics libraries today (e.g. Cairo) via mesh gradients. Please implement them.867 votes
The status for conic gradients can be tracked at https://dev.modern.ie/platform/status/conicgradients/
Please implement the :scope pseudo-class to refer to the context in querySelector(All). You’re the last browser remaining 206 votes
The :scope pseudo-class is now on the Microsoft Edge backlog with a priority of medium. You can track status changes at https://dev.modern.ie/platform/status/csscontextualreferenceelementpseudoclassscope/
Now that both Firefox 39+ and Safari 9 supports it in addition to being in development in Chrome, updating the Scroll Snap Points implementation to match the current spec is crucial. The current implementation from the IE 10 days is outdated and incompatible with the changes made since then.
Why hasn't there been any talk regarding this, and why hasn't it been done already?77 votes
Please just axe IE and don't rebrand with the Spartan project. You're literally the worst browser in every conceivable test http://html5test.com http://css3test.com and yet you make fun of people who critique you instead of dumping resources into fixing your garbage browser. https://www.youtube.com/watch?v=lD9FAOPBiDk
So happy Chrome is bashing you nowadays. You deserve it.155 votes
Supporting calc() in flexbox is now on the Microsoft Edge backlog.
Import HTML documents into other HTML documents.8,789 votes
See http://blogs.windows.com/msedgedev/2015/07/14/bringing-componentization-to-the-web-an-overview-of-web-components/ (part 1) and https://blogs.windows.com/msedgedev/2015/07/15/microsoft-edge-and-web-components/ (part 2) for more information on our Web Components thoughts, plans, and roadmap.
Please support this simple addition to build reversed ordered lists in HTML5.79 votes
The reversed attribute is on the Microsoft Edge backlog with a priority of medium. You can track status changes at https://dev.modern.ie/platform/status/olreversedattribute/
Update the IE implementation of Regions to match the current spec and interoperate with the Safari implementation91 votes
Updating CSS Regions to match the latest spec is currently on the Microsoft Edge backlog with a priority of medium.
A unified model for supporting animation and synchronization on the Web platform.2,781 votes
Define arbitrary shapes inside and around which inline content can flow.1,475 votes
CSS Shapes is now on the Microsoft Edge backlog with a priority of medium. You can track status updates at https://dev.modern.ie/platform/status/shapes/
CSS properties for aligning boxes within their container. Allows for true vertical centering among other features.1,387 votes
CSS Box Alignment is now on the Microsoft Edge backlog. You can track the status at https://dev.modern.ie/platform/status/boxalignment/
This feature would expose syntax errors to a developer who has a file open in the F12 debugger.
The item is on the backlog near the top and we hope to start on it soon, no dates yet though.
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