jQuery animate() animate div width on mouse hover

Introduction

Use the jQuery animate() method with the mouseenter() and mouseleave() methods to animate the width of a <div> element on mouseover.

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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>Animate Div Width on Hover in jQuery</title>
<style>
    .box{//from  ww w. j  av  a  2 s .  c  om
        width: 200px;
        height: 150px;
        background: #f0e68c;
        border: 1px solid #a29415;
    }
</style>
<script src="https://code.jquery.com/jquery-1.12.4.min.js"></script>
<script>
    $(document).ready(function(){
        var boxWidth = $(".box").width();
    $(".box").mouseenter(function(){
      $(this).animate({
        width: "400"
      });
    }).mouseleave(function(){
      $(this).animate({
        width: boxWidth
      });
    });
    });
</script>
</head>
<body>
  <p><strong>Note:</strong> Place mouse pointer over the box to play the animation.</p>
    <div class="box"></div>
</body>
</html>



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