[csswg-drafts] [css-fonts-5] Dynamic text size (#3708)

litherum has just created a new issue for https://github.com/w3c/csswg-drafts:

== [css-fonts-5] Dynamic text size ==
iOS includes a feature named "dynamic type" where users can increase the text size all across the OS. This is controlled by a slider in the system Settings app:

![image1](https://user-images.githubusercontent.com/918903/53773190-26e7ef80-3e9e-11e9-84a7-b4e629e67471.jpeg)

A similar feature exists on Windows. Here's a screenshot from the Windows 10 settings app:

![annotation 2019-03-04 165002](https://user-images.githubusercontent.com/918903/53773223-48e17200-3e9e-11e9-9344-2fd523b75888.jpg)

In the iOS case, and in the Windows case too from what I can tell, this setting is applied all across the OS, but isn't applied inside content drawn by the browser. In Safari's case, this is because changing text sizes often breaks webpage layout. (Safari has a related feature called "make text bigger" that can bump up the font size on a page, but the setting is per-site, not global.)

We've exposed this feature in Safari by using some non-standard values to the `font` property, and we've [evangelized](https://developer.apple.com/videos/play/wwdc2017/245/) this to developers. However, this feature is probably something that belongs on the Web Platform, rather than being a nonstandard extension.

Please view or discuss this issue at https://github.com/w3c/csswg-drafts/issues/3708 using your GitHub account

Received on Tuesday, 5 March 2019 01:02:35 UTC