- From: Diego Gonzalez via GitHub <noreply@w3.org>
- Date: Wed, 21 Jan 2026 19:49:50 +0000
- To: public-css-archive@w3.org
Based on the conversations we had at the call today, the trigger behaviour is no longer an API like [WCO](https://developer.mozilla.org/en-US/docs/Web/API/Window_Controls_Overlay_API) that hides the default title bar. The feature will work on any _installed_ web app running on it's own window. For reference, in the manifest file you can specify a [display mode](https://w3c.github.io/manifest/#display-modes) that generally will be one of the following: `fullscreen`, `standalone`, `minimal-ui` or `browser`. There is also a way to override the display mode with a [display-override](https://developer.mozilla.org/en-US/docs/Web/Progressive_web_apps/Manifest/Reference/display_override) that can additionally support `tabbed` and `window-controls-overlay`. The `window-drag` CSS property will work on web apps running on _their own window_, which can be any of the following display modes or display overrides: - `standalone` - `minimal-ui` - `tabbed` - `window-controls-overlay` -- GitHub Notification of comment by diekus Please view or discuss this issue at https://github.com/w3c/csswg-drafts/issues/13101#issuecomment-3780846723 using your GitHub account -- Sent via github-notify-ml as configured in https://github.com/w3c/github-notify-ml-config
Received on Wednesday, 21 January 2026 19:49:51 UTC