复制代码 代码如下:

html{

filter: grayscale(100%);

-webkit-filter: grayscale(100%);

-moz-filter: grayscale(100%);

-ms-filter: grayscale(100%);

-o-filter: grayscale(100%);

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"); filter:progid:DXImageTransform.Microsoft.BasicImage(grayscale=1);

-webkit-filter: grayscale(1);

}