I'm having troubles doing a transition from grayscale to colored, it works in chrome, but that is it.
Here is the HTML:
<div id="post" style="background-image:url('bg.png');background-repeat:no-repeat;">
    <p><a href="/post.php?id=1">Title - Date</a></p>
</div>
Here is the CSS:
#post{
    padding:0;
    margin:0 auto;
    margin-bottom:25px;
    border:solid 1px #000;
    height:150px;
    width:750px;
    display:block;
    filter: url("data:image/svg+xml;utf8,<svg xmlns=\'http://www.w3.org/2000/svg\'><filter id=\'grayscale\'><feColorMatrix type=\'saturate\' values=\'0.5\'/></filter></svg>#grayscale");
    filter: gray alpha(opacity=50);
    -webkit-filter: grayscale(50%);
    -webkit-transition: 0.3s all ease;
    -o-transition: 0.3s all ease;
    -moz-transition: 0.3s all ease;
    transition: 0.3s all ease;
    -webkit-backface-visibility: hidden;
}
#post:hover{
    filter: none;
    -webkit-filter: grayscale(0%);
}
Thanks for any help, it's appreciated.