Need a ticker across the top of homepage

Can you tell me how to add a ticker to the top of my homepage? I need one line of text to move from right to left across the top of the homepage. I tried creating a Revolution Slider that had the text at the top, but when I placed it at the top of my page, the image was no longer transparent (it had a gray background and covered up some of my menu). I also tried using a couple of different plugins, but they were not really what I need. Can you give me an idea of a way that would work best? Thank you so much for your help.
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