html,
body,
#app,
.wrapper {
width: 100%;
height: 100%;
/* overflow: hidden; */
-webkit-filter : grayscale(100%);
-moz-filter: grayscale(100%);
-o-filter: grayscale(100%);
filter: grayscale(100%);
filter: progid:DXImageTransform.Microsoft.BasicImage(grayscale=1);
}
标签：body,100%,grayscale,filter,变灰,页面 From： https://www.cnblogs.com/dianzan/p/16940517.html