Is it possible to set the height of the Text/HTML editor in admin?

Hi everyone,

I notice that the HTML/Text editor (tinymce I believe) in the Admin section when creating a new post is set to a specific height upon entering the page, but I wondered is it possible to set it higher in the code? I can see it’s within an iframe but it’s hard to tell where I could edit those values which seem to be hardcoded into style tags.

Any ideas would be appreciated.

Thank you
Michael