Adding a button to the banner

Hello,

I want to add a button right on top of the search bar where the writings are. Any idea how I can do this. I am using that to direct users to a promotion page. Thanks

@Cephas
Try something like this:
<a href="#" class="btn">My button</a>

Thank you very much. That works. How do I move the button to the middle, right under the search bar?  Thanks in advance.

@Cephas
Check some guides/docs:
https://www.w3schools.com/howto/howto_css_center_button.asp

Thank you. I appreciate it.