How to have an image spill over a section border?

Template used: Classon

I'm trying to have the an image in the top section spill into the other sections. This is a mockup for what I want:

You can see that the light flare gradually dims into the next section of the page. Currently, I have this:

The section border is cutting off my flare. I've tried various CSS code to try to extend the bottom margin, make overflow visible, etc but nothing has worked.

My site is not live at the moment so I'm not sure how to give the url. Essentially, I just want to know how to let my spill over the top section border.

Thank you!

Hi. If your site is private/trial, you can setup password & share url. We can help easier