/**网页变黑白*/
/* body *{ */
/* 	-webkit-filter: grayscale(100%); webkit */
/* 	-moz-filter: grayscale(100%); firefox */
/* 	-ms-filter: grayscale(100%); ie9 */
/* 	-o-filter: grayscale(100%); opera */
/* 	filter: grayscale(100%); */
/* 	filter:progid:DXImageTransform.Microsoft.BasicImage(grayscale=1);  */
/* 	filter:gray; ie9- */
/* } */