Conditional Formatting across multiple rows

I'm wondering if I can use one conditional formatting rule that can apply to different cells in the given range. For example, I want to highlight the cells in column 2 red if they are greater than their corresponding values in column 1 (the values to the left of them). In my example cells B2, B3, B5, etc. would be highlighted red. Can I do this with one rule or do I need a separate rule for every cell in column 2? I realize I could probably accomplish this with VBA, but I'm wondering if I can use one rule in conditional formatting. Thanks!