<!DOCTYPE html>
<html>
<head>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.12.2/jquery.min.js"></script>
<script>
$(document).ready(function(){
$("button").mousedown(function(){
$("p").slideToggle();
});
$("div").mouseover(function(){
$("button").mousedown();
});
});
</script>
</head>
<body>
<p>This is a paragraph.</p>
<button>Toggle</button><br><br>
<div>Mouse over this text to trigger the mousedown event for the button above.</div>
</body>
</html>