
To initially open HTML 11 tool windows, select Desktop preview or Mobile preview in the main HTML11 menu: When the server is stopped, the preview is no longer updated and a red border is displayed around the preview area. While the web application server is running in IIS Express, the preview is updated when you save a document. cshtml/.vbhtml pages in ASP.NET web application cshtml pages in ASP.NET Core 2.1/3.0 web application js file referenced in the HTML document, the preview is updated after you save the referenced file.

HTML 11 extension provides tool windows in Visual Studio 2022/2019/2017 showing preview of static and dynamic web pages you are currently editing, on desktop and mobile devices.
