I want to develop a map with Leaflet marker cluster. You can see how it looks like here: https://github.com/danzel/Leaflet.markercluster
But I need that my markers have popups with more information than just a name (three more rows). I don't have many those markers. In this example with clustering markers are only written by long and latitude, and one information without any css and popups (http://danzel.github.com/Leaflet.markercluster/example/realworld.388.js).
So how can I style my popups and enter more informations, and also how can I style my marker icons?
Also, I would need that popup shows up on mouse over, not on click.