Filters that make web pages black and white_Experience exchange

filters that make web pages black and white_experience exchange:

<style>      
html { filter:progid:dximagetransform.microsoft.basicimage(grayscale=1); }      
</style>

only available in ie

<style> 
html{filter: Gray;} 
</style>

the above is to make web pages black and white color filters_experience exchange content. for more related content, please pay attention to the php chinese website (www.php.cn)!