CSS makes the background transparent and the text opaque (compatible with all browsers)

In newer browsers such as FF/Chrome, you can use the rgba of the css attribute background-color to easily achieve background transparency while the text remains opaque. IE6/7/8 browsers do not support rgba, and can only be achieved by using IE's exclusive filter filter:Alpha. However, this way of writing will also make the text transparent, so it can only be used within the child nodes of the transparent container (except text nodes). Set position:relative to avoid inheriting the transparency filter of its parent element. The code is as follows:

DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
html xmlns="http://www.w3.org/1999/xhtml">
head>
meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
title>Web开发者网络 - www.admin10000.comtitle>
style type="text/css">
.warp{ background:#eee url(back.jpg) no-repeat left top; width:440px; height:400px;    border:1px solid #ccc;}
.content { width:180px; height:260px; margin:0px auto; padding:30px 30px; background:rgba(255, 255, 255, 0.6)!important;
filter:Alpha(opacity=60); background: #fff; /* Use IE exclusive filter to achieve IE background transparency*/ }
.content p{ position:relative;} /*Realize IE text opacity*/
style>
head>
body>
p class="warp">
p class="content">p >Admin10000.com is a must-have website for WEB developers to learn and communicate. Admin10000.com is a must-have website for WEB developers to learn and communicate. Admin10000.com is a must-have website for WEB developers to learn and communicate. Admin10000.com is a must-have website for WEB developers to learn and communicate. Admin10000.com is a must-have website for WEB developers to learn and communicate. Admin10000.com is a must-have website for WEB developers to learn and communicate. p>p>
p>
body >
html>

The above code has been tested and passed in IE6.0+/FF3.0+/Opera10+/Chrome/Safari

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