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CSS鼠标点击式变化图片透明度_html/css_WEB-ITnose

Jun 24, 2016 am 11:32 AM

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

   


           

  •             CSS鼠标点击式变化图片透明度_html/css_WEB-ITnose

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  •             CSS鼠标点击式变化图片透明度_html/css_WEB-ITnose

  •        

  •             CSS鼠标点击式变化图片透明度_html/css_WEB-ITnose

  •    


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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