CSS如何使网页页面所有变为深灰色
 2016-10-13 共享  
 
Desaturating a color image couldn t be simpler with CSS3. We ll apply the filter as a class, as you d typically desire several images to be affected by the code at the same time:
img.desaturate { filter: grayscale(100%); }
Naturally, all current browsers implement CSS3 filters via vendor prefixes, so our first job is to insert that code, writing in CSS that does not yet exist in order to future-proof our work:
img.desaturate { filter: grayscale(100%);
-webkit-filter: grayscale(100%); -moz-filter: grayscale(100%); filter: grayscale(100%); }Applying the class to the image is easy: 
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CSS如何使网页页面所有变为灰
Desaturating a color image couldnt be simpler with CSS3. Well apply the filter as……
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