jquery animate from object center_问答_开发者_运维开发者技术经验分享

开发者 https://www.devze.com 2023-01-02 07:09 出处：网络

I am trying to create a product view开发者_运维知识库er similar to the one at the bottom of this page http://www.logitech.com/en-gb/. As you can see the product animates from the center rather than top left which I think is Jquery's default. So what I am doing is trying animate the width and height and then also the offset to make it look like it animates from the center.

My code looks like this:

<style>
  body {
    background: black;
  }
  .box {
    background: #fff url('pic.jpg') no-repeat 0 0;
    width: 200px;
    height: 200px;
    margin: 10px 4%;
    float: left;
  }

</style>

<script type="text/javascript">
    $(document).ready(function() {
        $(".box").hover(function() {
            $(".box").not(this).fadeTo(500, 0.5);
            $(this).animate({
                width: 300,
                height: 300,
                left: -100,
                top: -100
            }, 500);
        },
        function() {
            $(this).animate({
                width: 200,
                height: 200,
                left: 100,
                top: 100
            }, 500);
            $(".box").fadeTo(500, 1);
        });
    });
</script>

I cannot seem to get this working as I want. Can anyone help with this or suggest a better technique? Many thanks

After playing around I have managed to get the effect I want. Here is the code so far:

<html>
<head>
    <script src="../jquery.js"></script>
    <style>
      body {
        background: black;
      }
      .box {
        background: #fff;
        width: 200px;
        height: 200px;
        margin: 10px 4%;
        float: left;
        position: relative;
        z-index: 0;
      }

      img {
        position: relative;
        top: 0;
        left: 0;
        z-index: 0;
      }

    </style>

    <script type="text/javascript">
        $(document).ready(function() {
            $(".box").hover(function() {
                $(".box").not(this).fadeTo(500, 0.1);
                $(this).find('img').animate({
                    width: 300,
                    height: 300,
                    left: -50,
                    top: -50
                }, 100);
            },
            function() {
                $(".box").fadeTo(100, 1);
                $(this).find('img').animate({
                    width: 200,
                    height: 200,
                    left: 0,
                    top: 0
                }, 500);
            });
        });
    </script>
</head>
<body>
    <div class="box"><img src="pic.jpg" /></div>
    <div class="box"><img src="pic.jpg" /></div>
    <div class="box"><img src="pic.jpg" /></div>
    <div class="box"><img src="pic.jpg" /></div>
    <div class="box"><img src="pic.jpg" /></div>
    <div class="box"><img src="pic.jpg" /></div>
    <div class="box"><img src="pic.jpg" /></div>
    <div class="box"><img src="pic.jpg" /></div>
    <div class="box"><img src="pic.jpg" /></div>
    <div class="box"><img src="pic.jpg" /></div>
    <div class="box"><img src="pic.jpg" /></div>
    <div class="box"><img src="pic.jpg" /></div>
</body>