Banner with titles from RSS feed

I need dynamic banner that will have updated headlines from our RSS feed. It should be some short code that we can send to our partner sites and they can publish it on their sites, showing our news headlines. The banner should be search engine friendly. This means that the urls should be visible to search engine spiders. We only need the coding, not design. But it should be implemented so that we can easily change the design to fit target page (CSS for link styles, text field width and height, background image etc).