of the code. Since <strong>curtains.js is a high-level API library</strong>, most of those classes are used internally only. Even tho they are listed here you won't ever need to use them.
                                </p>

                                <p>
                                    If you're coming from a previous version of the library, have a look at the <a href="migration-guide-to-v7.html">migration guide</a>.
                                </p>

                                <h3 class=