从下面移动内容停止jQuery下滑效果？

I have 4 'tabs' at the top of my page, which, when clicked, slide down to reveal a hidden div using the jQuery slide down function. The problem is that I don't want the 4 static 'tabs' to be affected by this. I want them to remain in the same position. I can't seem to find a away to stop them moving down when the hidden div is revealed.I have 4 'tabs' at the top of my page, which, w