Black and White Pictures, Color on Hover Options

[redciv2]

I searched the forum, but I was unsure of exactly how to use the code.
I want all of my pictures to START black and white. I found:
img { filter: Gray; }

How would I put that in...
<style="text/css">
img { filter: Gray; }
</style>
Is that correct?

I'd try it, but I don't want to mess up the current layout yet. I'm putting my code together in word so that it looks complete when I put it on.

Secondly, how do I make it COLOR on hover? I found code to make it go from color to grayscale. Would it be the same except say color?

Thank you.

[PrincessAda]

<style="text/css">
img { filter: none; }
</style>

The codes correct
^^Thats to make it colored

[freeflow]

In that code you need to change hte first style tag to
<style type="text/css">
then code here.

That should be the right code.

[coldtrance]

<style="text/css">
img { filter: none; }
</style>

The codes correct
^^Thats to make it colored

^that would cancel out the black and white code.. you have to change that to a hover code

i think its:

hover img {filter:none;}

but i cant remember