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