CSS代码 html { filter: progid:DXImageTransform.Microsoft.BasicImage(grayscale=1); -webkit-filter: grayscale(100%); filter: grayscale(100%); } 或 body *{ -webkit-filter: grayscale(100%); /* webkit */ -moz-filter: grayscale(100%); /*firefox*/ -ms-filter: grayscale(100%); /*ie9*/ -o-fi...