/*
html {
    filter: grayscale(100%);
    -webkit-filter: grayscale(100%);
    -moz-filter: grayscale(100%);
    -ms-filter: grayscale(100%);
    -o-filter: grayscale(100%);
    filter: url(desaturate.svg#grayscale);
    filter:progid:DXImageTransform.Microsoft.BasicImage(grayscale=1);
    -webkit-filter: grayscale(1);
}
body{filter:gray;}
HTML {
    FILTER: progid:DXImageTransform.Microsoft.BasicImage(grayscale=1); -webkit-filter: grayscale(1); -moz-filter: grayscale(100%); -ms-filter: grayscale(100%); -o-filter: grayscale(100%);BACKGROUND: #fff; COLOR: #000
}
BODY,DIV, DL,DT,DD,UL,OL,LI,H1,H2,H3,H4,H5,H6,PRE,CODE,FORM,FIELDSET,LEGEND,INPUT,TEXTAREA,P,BLOCKQUOTE,TH,TD{
    FILTER: gray;
}*/