头部插入网站全部变灰代码

 

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<style>   
 
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);}   
 
</style>