本文提供了三种使用HTML和CSS实现div内图片垂直居中的方法。通过调整div和img元素的样式属性，可以确保图片无论大小都能在div容器中精确地水平和垂直居中。
方法一：
[color=blue]<style type="text/css">
<!--
* {margin:0;padding:0}
div {
width:500px;
height:500px;
border:1px solid #666;
overflow:hidden;
position:relative;
display:table-cell;
text-align:center;
vertical-align:middle
}
div p {
position:static;
+position:absolute;
top:50%
}
img {
position:static;
+position:relative;
top:-50%;left:-50%;
}
-->
</style>
<div><p><img src="http://www.google.com/intl/en/images/logo.gif" /></p></div>[/color]
方法二：
[color=blue]<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>div里面图片垂直居中的几个例子</title>
<style type="text/css">
<!--
body {
margin:0;padding:0
}
div {
width:500px;
height:500px;
line-height:500px;
border:1px solid #666;
overflow:hidden;
position:relative;
text-align:center;
}
div p {
position:static;
+position:absolute;
top:50%
}
img {
position:static;
+position:relative;
top:-50%;left:-50%;
vertical-align:middle
}
p:after {
content:".";font-size:1px;
visibility:hidden
}
-->
</style>
</head>
<body>
<div><p><img src="http://www.google.com/intl/en/images/logo.gif" /></p></div>
</body>
</html>[/color]
方法三：
[color=darkblue]<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>div里面图片垂直居中的几个例子</title>
<style type="text/css">
<!--
* {margin:0;padding:0}
div {
width:500px;
height:500px;
line-height:500px;
border:1px solid #666;
overflow:hidden;
position:relative;
text-align:center;
}
div p {
position:static;
+position:absolute;
top:50%;
vertical-align:middle
}
img {
position:static;
+position:relative;
top:-50%;left:-50%;
vertical-align:middle
}
-->
</style>
</head>
<body>
<div><p><img src="http://www.google.com/intl/en/images/logo.gif" /></p></div>
</body>
</html>[/color]
[color=blue]<style type="text/css">
<!--
* {margin:0;padding:0}
div {
width:500px;
height:500px;
border:1px solid #666;
overflow:hidden;
position:relative;
display:table-cell;
text-align:center;
vertical-align:middle
}
div p {
position:static;
+position:absolute;
top:50%
}
img {
position:static;
+position:relative;
top:-50%;left:-50%;
}
-->
</style>
<div><p><img src="http://www.google.com/intl/en/images/logo.gif" /></p></div>[/color]
方法二：
[color=blue]<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>div里面图片垂直居中的几个例子</title>
<style type="text/css">
<!--
body {
margin:0;padding:0
}
div {
width:500px;
height:500px;
line-height:500px;
border:1px solid #666;
overflow:hidden;
position:relative;
text-align:center;
}
div p {
position:static;
+position:absolute;
top:50%
}
img {
position:static;
+position:relative;
top:-50%;left:-50%;
vertical-align:middle
}
p:after {
content:".";font-size:1px;
visibility:hidden
}
-->
</style>
</head>
<body>
<div><p><img src="http://www.google.com/intl/en/images/logo.gif" /></p></div>
</body>
</html>[/color]
方法三：
[color=darkblue]<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>div里面图片垂直居中的几个例子</title>
<style type="text/css">
<!--
* {margin:0;padding:0}
div {
width:500px;
height:500px;
line-height:500px;
border:1px solid #666;
overflow:hidden;
position:relative;
text-align:center;
}
div p {
position:static;
+position:absolute;
top:50%;
vertical-align:middle
}
img {
position:static;
+position:relative;
top:-50%;left:-50%;
vertical-align:middle
}
-->
</style>
</head>
<body>
<div><p><img src="http://www.google.com/intl/en/images/logo.gif" /></p></div>
</body>
</html>[/color]
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