原理
将二个相同而色彩不同的文字重合在一起，通过分别给其加 clip 属性，使上面和下面的文字被剪切位置不同，从而产生二种不同的色彩。
clip : 摘自苏沈小雨CSS手册clip : auto │ rect ( number number number number )
参数：
auto : 对象无剪切
rect ( number number number number ) :
依据上-右-下-左的顺序提供自对象左上角为(0,0)坐标计算的四个偏移数值，其中任一数值都可用auto替换，即此边不剪切
说明：
检索或设置对象的可视区域。区域外的部分是透明的。
必须将position的值设为absolute，此属性方可使用。
测试环境
Firefox1.5、IE6.0、Opera8.5、IE5.01绿色版通过。
CSS 以下是引用片段：
.textBottom {
color: #333333;
position: absolute;
left: 3em;
top: 1em;
font: 26px Century Gothic,Arial, Helvetica, sans-serif;
clip: rect(18px auto auto auto);
}
.textTop {
color: #CC0000;
position: absolute;
left: 3em;
top: 1em;
font: 26px Century Gothic,Arial, Helvetica, sans-serif;
clip: rect(0 auto 18px 0);
}
.container {
width: 28em;
height: 5em;
margin: 1em auto;
position: relative;
background: #F6F6F6;
}
[color=#FFFFFF'][/color]
xhtml 以下是引用片段：
<div class="container">
<a href="#" class="textTop">Cascading Style Sheet </a>
<a href="#" class="textBottom">Cascading Style Sheet </a>
</div>
[url=http://www.forest53.com/tutorials/clip/][/url]
<!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" xml:lang="en" lang="en">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<meta name="Keywords" content="多彩文字,Multi Colored Text" />
<meta http-equiv="Description" content="利用CSS 的 Clip 属性来创造 多彩文字(Multi Colored Text)" />
<meta content="all" name="robots" />
<meta http-equiv="pragma" content="no-cache" />
<meta name="author" content="forestgan" />
<meta name="copyright" content="forestgan" />
<title>多彩文字(Multi Colored Text)</title>
<style type="text/css">
body{
background: #FFFFFF;
color: #333333;
font-family: Arial, Helvetica, sans-serif;
font-size: 100%;
line-height: 140%;
text-align: center;
padding: 0;
margin: 0;
}
p{
margin: 0;
}
address{
font-size: 75%;
}
body,html{
height: 100%;
}
* html, * html body{
overflow: hidden;
}
#top{
min-height: 90%;
overflow: auto;
}
* html #top{
height: 90%;
}
#footer{
height: 10%;
background: #CC0000;
color: #FFFFFF;
}
address{
padding-top: 1em;
font-style: normal;
}
a{
text-decoration: none;
}
.textBottom {
color: #333333;
position: absolute;
left: 3em;
top: 1em;
font: 26px "Century Gothic",Arial, Helvetica, sans-serif;
clip: rect(18px auto auto auto);
}
.textTop {
color: #CC0000;
position: absolute;
left: 3em;
top: 1em;
font: 26px "Century Gothic",Arial, Helvetica, sans-serif;
clip: rect(0 auto 18px 0);
}
.container {
width: 28em;
height: 5em;
margin: 1em auto;
position: relative;
background: #F6F6F6;
}
.textTop:hover {
color: #808080;
}
.textBottom:hover {
color: #FF4646;
}
</style>
</head>
<body lang="en">
<div id="top">
<div class="container"> <a href="#" class="textTop">Cascading Style Sheet </a> </div>
<p>文字的上半部分</p>
<div class="container"> <a href="#" class="textBottom">Cascading Style Sheet </a> </div>
<p>文字的下半部分</p>
<div class="container"> <a href="#" class="textTop">Cascading Style Sheet </a> <a href="#" class="textBottom">Cascading Style Sheet </a> </div>
<p>二组文字重合的效果</p>
</div>
<div id="footer">
<address>
Design by <a href="http://www.forest53.com">forestgan</a> 本演示采用<a href="http://www.creativecommons.cn/">创作共用授权</a>--署名和非商业用途。
</address>
</div>
<script src="http://www.google-analytics.com/urchin.js" type="text/javascript">
</script>
<script type="text/javascript">
_uacct = "UA-152060-1";
urchinTracker();
</script>
<noscript>google-analytics</noscript>
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<noscript>stat.</noscript>
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