为什么IE8在我的图像锚标记上添加底部边框?

I know, it's pathetic, but IT just got around to installing IE8 on my machine this morning. Right off the bat I came across a glaring issue and I've messed around with it for too long even though I KNOW the answer is staring me right in the face. I know, it's pathetic, but IT just got around t