Check your CSS code without leaving the IDE by using CssCop, which brings the CSS Lint functionality to the Visual Studio environment.

If you have an existing web application, open it in Visual Studio Code (preferably copying it to a new development branch) and then use the PWA Studio tools to convert it into a PWA.

New Vision support with GitHub Copilot in the latest Visual Studio Code Insiders build takes a user-supplied mockup image and creates a web page from it in seconds, handling all the HTML and CSS.