网站黑白效果兼容ie

<style type="text/css">
html {
    -webkit-filter: grayscale(100%);
    -moz-filter: grayscale(100%);              
    -ms-filter: grayscale(100%);              
    -o-filter: grayscale(100%);              
    filter: grayscale(100%); 
} 
</style>

<!--[if IE]>
<style type="text/css">         
*{
    -webkit-filter: grayscale(100%);
    -moz-filter: grayscale(100%);
    -ms-filter: grayscale(100%);
    -o-filter: grayscale(100%);
    filter: grayscale(100%);
    filter:gray;
}
</style>
<![endif]-->