Razor/HTML F12 Go To Definition no longer navigates to CSS class definitions

_This issue has been moved from [a ticket on Developer Community](https://developercommunity.visualstudio.com/t/RazorHTML-F12-Go-To-Definition-no-longe/11084750)._

---
[severity:It's more difficult to complete my work]
Go To Definition / F12 from Razor class attribute to CSS class definition no longer works in Visual Studio 18.5.1. CSS IntelliSense works, full text search finds the CSS definition, F12 works for C#, but CSS class navigation from Razor/HTML does nothing. Reproducible in a new Blazor Web App with a simple <div class="rm-test-f12"> and app.css definition.

---
### Original Comments

#### Feedback Bot on 03/05/2026, 08:43 PM:

Based on similar issues resolved with Microsoft in the last 6 months, the following can help resolve this issue faster.

Possible workarounds

Try updating to the latest Visual Studio build and re-test the Razor/HTML Go To Definition (F12) behavior. Since the issue is reproducible in a new Blazor Web App, also try deleting the solution’s .vs folder and reopening the project, then test again.

If not already included, please provide:

Detected: OS: 10.0.26200.0, VS: 18.5.2 (18.5.11723.231), Project type: C# / Blazor Web App

Please share a few more specifics so we can investigate:

• Does the issue reproduce in every new Blazor Web App, or only in this one solution?


• What exact file are you invoking F12 from, and is the class value in a Razor file or plain HTML file?


• Is the CSS definition in app.css, and is the CSS file definitely included/open in the same solution?


• Does Ctrl+click / Go To Definition behave the same way as F12?


• Did this work in a previous VS version or does it fail immediately after opening VS 18.5.2?

#### Dirk-Matthias Metzger on 03/05/2026, 08:46 PM:

(private comment, text removed)
#### Feedback Bot on 04/05/2026, 00:24 PM:

We have directed your feedback to the appropriate engineering team for further evaluation. The team will review the feedback and notify you about the next steps.