Change height of slider

Hiya

Could you tell me the CSS to use to change the height of the slider please?

I've tried using this:
.flexslider {
height: 200px;
}

It doesn't seem to work though.
Thanks.

 

Hello,

Paste this code in Custom CSS
Appearance > Theme Option > Styling Option > Custom CSS

Code:

 .flexslider .slides img {
height: 200px;
}

Thanks & Regards
Gourav Shrivastava