html {-webkit-filter: grayscale(100%);    -moz-filter: grayscale(100%);    -ms-filter: grayscale(100%);    -o-filter: grayscale(100%);    filter: grayscale(100%);    filter: url("data:image/svg+xml;utf8,<svg xmlns=\‘http://www.w3.org/2000/svg\‘><filter id=\‘grayscale\‘><feColorMatrix type=\‘matrix\‘ values=\‘0.3333 0.3333 0.3333 0 0 0.3333 0.3333 0.3333 0 0 0.3333 0.3333 0.3333 0 0 0 0 0 1 0\‘/></filter></svg>#grayscale");     filter: progid:DXImageTransform.Microsoft.BasicImage(grayscale=1);}

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