# language highlight **docsify** uses [Prism](https://github.com/PrismJS/prism) to highlight code blocks in your pages. By default it only supports CSS, JavaScipt and HTML. You can make **Prism** load additional languages: ```html ``` ?> Check the [component files](https://github.com/PrismJS/prism/tree/gh-pages/components) list for more options.