# Custom HTML plug-ins

In addition to the basic modifications that can be made with parameter settings and property files, you can create custom HTML plug-ins that bundle custom fonts, JavaScript, and stylesheets; modify the HTML markup, or override other aspects of HTML processing.

Note:
These examples are not intended to be used as-is, but illustrate basic techniques you can use in your own plug-ins. In practise, custom plug-ins often combine several of these approaches.