<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Title</title>
<style>
.box {
/* 可见视觉区域 */
480px; height: 250px;
position: relative;
overflow: hidden;
cursor: pointer;
}
.size {
/* 广阔的海洋 */
1000px; height: 1000px;
position: absolute; left: 50%; top: 50%;
margin: -500px 0 0 -500px;
/* 水平居中 */
text-align: center;
}
.zoom {
/* 缩放的元素 */
480px; height: 250px;
vertical-align: middle;
-webkit-transition: -webkit-transform .2s;
transition: transform .2s;
}
.box:hover .zoom {
/* hover放大 */
-webkit-transform: scale(1.05);
-ms-transform: scale(1.05);
transform: scale(1.05);
zoom: 1.05;
}
:root .box:hover .zoom {
zoom: 1;
}
.middle {
/* 垂直居中 */
display: inline-block;
0; height: 100%;
vertical-align: middle;
}
</style>
</head>
<body>
<h4>左上角定位</h4>
<div class="box">
<img src="timg.jpg" class="zoom">
</div>
<h4>居中定位</h4>
<div class="box">
<div class="size">
<img src="timg.jpg" class="zoom"><i class="middle"></i>
</div>
</div>
</body>
</html>