Rider reports `@@apply` as syntax error inside razor markup

I have a ASP.NET Blazor project which is using Tailwindcss for styling. I get intellisense hints from the regular Rider Tailwindcss integration. But, during development, instead of compiling Tailwind each time on build, I use Tailwind play CDN. So my App.razor component has the following code:

```
@*TODO: Fix this when ready for publishing*@
@*<link rel="stylesheet" href="tailwind.output.css" />*@
<script src="https://cdn.tailwindcss.com"></script>
<style type="text/tailwindcss">
   @@layer components {
       h1 {
           @@apply text-3xl mb-4
       }

       button {
           @@apply bg-gray-200 rounded border-2 hover:bg-gray-100 hover:border-black p-2 m-2 h-12;
       }
   }
</style>

```

The Tailwind `@layer` and `@apply` directive must be escaped with additional `@` in razor markup. The app builds without errors. But Rider editor reports syntax error: `':' expected`. It looks like Rider understands `@@layer` syntax but not `@@apply` syntax.