看看各种 CSS函数在jQuery中，主要是 offset() ，也许还有

Take a look at the various CSS functions in jQuery, mostly offset() and maybe height().

// pseudocode, assuming #tooltip has position: absolute
// do something similar with the left offset as well
$('#tooltip').css({ top : $('#link').offset().top + 10 + 'px' });

这会将工具提示静态地放置在链接之上或附近，我认为这是您想要的.如果要用鼠标移动工具提示，则需要动态更新 mousemove中的位置事件.

This would place the tooltip statically over, or close to, the link, which I think is what you're looking for. If you want the tooltip to move with the mouse, you'll need to dynamically update the position in a mousemove event.