...After that, take any sections of your page that need a different nav and add data-midnight="your-class" to it, where .your-class is the class you are going to use to style that header. If you don't use the property or just leave it blank, the .default class will be used for that section. You can style it in your CSS using the class .midnightHeader.your-class. Use whatever CSS or markup you like for each one. They will be switched automatically when necessary. To make everything work, just load midnight (and jQuery) and initialize it. We take care of the rest.