如何在悬停时将属性应用于上一个兄弟？

I have two under ordered lists, both with the same links, but with different formatting. One is thumbnails, the other is an actual text list. When the user hovers over the thumbnails, the anchor's CSS properties change. I'd like the same thing to happen when the user hovers over the text list (thus highlighting the appropriate thumbnail from the first list). So:I have two under ordered lists, both with the s