This is the footer with 4 words, Privacy Policy and Cookies, which is a link.to an article

Our 2.5 site handles this topic with the words:
This website uses cookies and by continuing to browse this site you have consented to their use. Click here to read the Privacy and Cookies Policy

I want to change to this in Joomla 3, but cannot work out where it is derived from.
Also I would like to change it to black writing on a white background, with the footer not so tall, which will improve the overall appearance.

Unfortunately I have absolutely no idea on how to do this. Any help will be appreciated please