網站哀悼變灰代碼

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

}

在IE9,FIREFOX,CHROME下測試通過