CSHTML is a markup language created by Microsoft for ASP.NET MVC, ASP.NET Core and Blazor applications. It allows to create markup containing both C# and HTML code.

For more about the CSHTML Razor syntax here: https://docs.microsoft.com/en-us/aspnet/core/mvc/views/razor.

Simply include the Highlight.js library in your webpage or Node app, then load this module.

Simply load the module after loading Highlight.js. You'll use the minified version found in the dist directory. This module is just a CDN build of the language, so it will register itself as the Javascript is loaded.

<script type="text/javascript" src="/path/to/highlight.min.js"></script>
<script type="text/javascript" src="/path/to/highlightjs-cshtml-razor/dist/cshtml-razor.min.js"></script>
<script>
    hljs.highlightAll();
</script>

Add the following script tag in your page:

<script type="text/javascript" src="https://unpkg.com/highlightjs-cshtml-razor/dist/cshtml-razor.min.js"></script>

If you're using Node / Webpack / Rollup / Browserify, etc, simply require the language module, then register it with Highlight.js.

var hljs = require('highlightjs');
var hljsRazor = require('highlightjs-cshtml-razor');

hljs.registerLanguage("cshtml-razor", hljsRazor);
hljs.highlightAll();