.mouseleave() triggers when exiting a designated boundary area

I'm attempting to implement a roll-up feature for a div when the mouse is over another div. The issue I'm facing is that the roll-up div closes even if the mouse just exits through the bottom border. Is there a way to achieve this using JavaScript or jQuery? Below is my current code snippet:

$("#sell1").mouseenter(function(){
        $("#rollup1").css("display","inline");
    });
    $("#rollup1").mouseleave(function(){
        $("#rollup1").css("display","none");
    });
    $("#sell1").mouseleave(function(){
        $("#rollup1").css("display","none");
    });

Answer №1

Upon handling the mouseleave event, it is important to determine the dimensions of the element and check if the event's pageY value is positioned below the element:

$("#rollup1").mouseenter(function() {
  $("#status").text("Cursor over the element...");
});
$("#rollup1").mouseleave(function(e) {
  var $this = $(this);
  var bottom = $this.offset().top + $this.height();
  if (bottom < e.pageY) {
    $("#status").text("Exited via the bottom edge");
  } else {
    $("#status").text("Exited NOT via the bottom edge");
  }
});
#rollup1 {
  width: 50px;
  height: 50px;
  border: 1px solid black;
}
<div id="status">&nbsp;</div>
<div id="rollup1"></div>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js"></script>

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