/*html {-webkit-filter: grayscale(100%);filter:progid:DXImageTransform.Microsoft.BasicImage(graysale=1);}

body,img{
    -webkit-filter: grayscale(100%); 
    -ms-filter: grayscale(100%);
    -moz-filter: grayscale(100%);
    filter: gray;  background:none !important; }*/