Wecome to the forums!
Please click the following link and read our posting guidelines (at least the first two posts) for information about the best way to present your issue.
CSS alone is rarely useful. Inline CSS is difficult to read; indented properties are easier to read and interpret. Since CSS works together with HTML, we usually need to see the HTML, too. Since we have never seen your design intent or your code before, the more relevant code you show us and the better you explain the issue, the better and faster we can help you.
The above line is invalid. Had you tested the code before posting it, it would have failed validation. We strongly recommend that you test your code in a working page before posting it here. It’s always helpful if we can see what you see.