使网页变成黑白的css

一句代码让网页变成黑白效果,最近用上了,记录一下!!!

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);
}
*{
    -moz-filter: grayscale(100%); 
    -ms-filter: grayscale(100%); 
    -o-filter: grayscale(100%); 
    filter: gray;
}