全网页都变灰了,这是怎么实现的?

近期网页的灰色效果,仅仅只需几行代码即可实现,如下,需要自取:

html {
    -webkit-filter: grayscale(100%);
    -moz-filter: grayscale(100%);
    -ms-filter: grayscale(100%);
    -o-filter: grayscale(100%);
    filter: grayscale(100%);
    filter: progid:DXImageTransform.Microsoft.BasicImage(grayscale=1);
}

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转载自blog.csdn.net/m0_56683897/article/details/128238642