文字阴影text-shadow
text-shadow属性值的顺序：
text-shadow: h-shadow v-shadow blur color;
参数分别表示水平阴影位置，垂直阴影位置，模糊半径，阴影颜色。
一个栗子：
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>CSS3阴影</title>
<style type="text/css">
p{
margin: 0;
font-family: helvetica,arial,sans-serif;
color: #999;
text-align: center;
font-size:80px;
font-weight:bold;
text-shadow:10px 10px #333;
}
</style>
</head>
<body>
<p>Text Shadow</p>
</body>
</html>
通过控制水平位移和垂直位移可以控制阴影偏向，正值偏右偏下。负值偏左偏上。
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>CSS3阴影</title>
<style type="text/css">
p{
margin: 0;
font-family: helvetica,arial,sans-serif;
color: #999;
text-align: center;
font-size:80px;
font-weight:bold;
text-shadow:-10px -10px #333;
}
</style>
</head>
<body>
<p>Text Shadow</p>
</body>
</html>
可以修改模糊半径来控制阴影的模糊程度：
栗子：
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>CSS3阴影</title>
<style type="text/css">
p{
margin: 0;
font-family: helvetica,arial,sans-serif;
color: #999;
text-align: center;
font-size:80px;
font-weight:bold;
text-shadow:10px 10px 30px #333;
}
</style>
</head>
<body>
<p>Text Shadow</p>
</body>
</html>
也可以定义多个阴影用逗号隔开：
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>CSS3阴影</title>
<style type="text/css">
p{
margin: 0;
font-family: helvetica,arial,sans-serif;
color: #fff;
text-align: center;
font-size:80px;
font-weight:bold;
text-shadow:20px 50px 10px #600,
30px -10px 10px #060,
-40px 20px 10px #006;
}
</style>
</head>
<body>
<p>Text Shadow</p>
</body>
</html>
还可以来点特效，比如燃烧：
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>CSS3阴影</title>
<style type="text/css">
body
{
background:#000;
}
p{
margin: 0;
padding:24px;
font-family: helvetica,arial,sans-serif;
color: #000;
text-align: center;
font-size:80px;
font-weight:bold;
text-shadow:0 0 4px #fff,
0px -5px 4px #ff3,
2px -10px 6px #fd3,
-2px -15px 11px #f80,
2px -25px 18px #f20;
}
</style>
</head>
<body>
<p>Text Shadow</p>
</body>
</html>
浮雕效果：
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>CSS3阴影</title>
<style type="text/css">
body
{
background:#ccc;
}
p{
margin: 0;
padding:24px;
font-family: helvetica,arial,sans-serif;
color: #d1d1d1;
background:#ccc;
text-align: center;
font-size:80px;
font-weight:bold;
text-shadow:-1px -1px #fff,
1px 1px #333;
}
</style>
</head>
<body>
<p>Text Shadow</p>
</body>
</html>
