Change width and height of contact form 7 message area

How do I change the width and height of the message field? In firebug I see it’s this code but have no idea where to change it.

span class=“wpcf7-form-control-wrap your-message”>
<textarea rows=“10” cols=“40” name=“your-message”></textarea>
</span>

Thanks so much in advance!

Ah, got it! In Contact Form Settings, on the right, in the drop down, choose text area and you can customize it there. I didn’t see that before. Hope this helps someone else. Thanks!