CSS如何实现图片灰色和原色切换:
建议:尽可能的手写代码，可以有效的提高学习效率和深度。
有些网站效果比较绚丽，就是当鼠标放在图片上的时候，图片可能会有灰色和原来色彩的切换。下面简单介绍一下如何实现此效果。
代码实例:
<!DOCTYPE html><html><head><meta charset="utf-8"><meta name="author" content="http://www.softwhy.com/" /><title>蚂蚁部落</title><style type="text/css"> a img{ border:0px; filter:gray; } a:hover img{ border:0px; filter: } </style> </head> <body> <a href="#"><img src="/static/imghwm/default1.png" data-src="mytest/demo/yinying.jpg" class="lazy" alt="CSS如何实现图片灰色和原来色彩切换_html/css_WEB-ITnose" ></a> </body> </html> 以上代码很简单，就是filter属性集合超链接伪类一起实现的。不过很遗憾，filter属性只有IE浏览器支持。
原文地址是:http://www.softwhy.com/forum.php?mod=viewthread&tid=4691
更多内容可以参阅:http://www.softwhy.com/divcss/
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