How to change position on 3th party form on a page

I added a form for donations on a page through Advanced option on a page menu, but it is located in the top left corner right under the header. Can I change the location of the form to the bottom of the page. This is the code I used:

<script src="https://donorbox.org/widget.js" paypalExpress="true"></script><iframe src="https://donorbox.org/embed/donate-monthly-14" name="donorbox" allowpaymentrequest="allowpaymentrequest" seamless="seamless" frameborder="0" scrolling="no" height="900px" width="100%" style="max-width: 500px; min-width: 250px; max-height:none!important"></iframe>

Thank you.

Sorry, I ment "of a 3rd party form on a page"

I found it. The question is not relevant any more.