Issue aligning a button within a container

Hello, I’m trying to build a survey that moves sideways as questions are answered, so I created different sections to cover the title, image, and the start button. However, I couldn’t manage to position the button under the image.

Can someone please help me, I would really appreciate it

Here is how it looks now:

Link to my code:

Hi there,

Just for clarification, are you trying to get the “Vamos” button to be under the picture while inside the orange square? Or would the button be outside and under the orange square?

I want it to be inside the orange square and under the picture. The block is orange at the moment so that I could easily observe the container.