How can we make changes to the look and feel of the popup? e.g. In following link, I don't want to show Maximize button, I want to keep balloon arrow longer, I want to change background color of the popup etc.
I don't have map related CSS (esri.css, claro.css etc) in my environment, I download them on-the-fly when user views the map. Where can I find CSS classes of the popup?