CSS鼠标点击式变化图片透明度_html/css_WEB-ITnose
今天分享前端代码主题：jequery控制css图片透明度
很多时候在网站图片处理上需要实现一些辅助效果，比如鼠标在图片上滑动时或点击时改变图片颜色（变灰或者其他），其实一个简单的办法就是改变图片css透明度属性。
如何改变呢？一种是纯css，一种使用jquery或者javascript代码控制。第一种使用:hover伪类选择器，本示例使用第二种。
先看最后效果：
第一步：放置图片
这里每张图片先默认设置一个class选择器imgopacity（默认图片未选中，显示为淡灰色）
第二步：设置图片
css样式如下：
.imgopacity
{
filter: alpha(opacity=50);
-moz-opacity: 0.5;
-khtml-opacity: 0.5;
opacity: 0.5;
}
ul li
{
list-style-type: none;
}
上述css样式中0.5为图片透明度属性值，值范围：0—1，值越大图越清晰
此刻效果如下：
第三步：编写jquery代码点击式控制图片透明度
当鼠标点击某一张图片时，将该图片正常显示，其他图片变成淡灰色。
由于默认图片有一个class选择器imgopacity代表淡灰色，即当我们鼠标点击该图片时删除该class即可正常显示该图片，代码如下：
$(function () {
$("#test img").click(function () {
$("#test img").addClass("imgopacity");
$(this).removeClass("imgopacity");
})
});
最终效果如下：
今日分享到此结束，感谢您的阅读，改日再分享，请多多指教。
本示例完整源码：点击下载源码
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