Customize the header icons with the icons option, which accepts classes for the header's default and selected (open) state. Use any class from the UI CSS framework, or create custom classes with background images.
Because the accordion is comprised of block-level elements, by default its width fills the available horizontal space. To fill the vertical space allocated by its container, set the boolean fillSpace option to true, and the script will automatically set the dimensions of the accordion to the height of its parent container. The accordion will also resize with its container if the container is resizable.