如何在悬停时向上移动div显示Link/ div？

<div id="hover-div">
    <a href="#">Link</a>
    <div>div内容</div>
</div>

#hover-div {
    position: relative;
}

#hover-div a,
#hover-div div {
    display: none;
    position: absolute;
    top: 0;
    left: 0;
    background: #fff;
    padding: 10px;
    border: 1px solid #ccc;
}

#hover-div:hover a,
#hover-div:hover div {
    display: block;
}

var hoverDiv = document.getElementById('hover-div');
hoverDiv.addEventListener('mousemove', function(e) {
    var link = hoverDiv.querySelector('a');
    var div = hoverDiv.querySelector('div');
    
    link.style.top = -e.offsetY + 'px';
    link.style.left = -e.offsetX + 'px';
    
    div.style.top = -e.offsetY + 'px';
    div.style.left = -e.offsetX + 'px';
});