Requesting help for fixing image with text shifting up into the header section

Store Design
1

The way I have set up my shop I have an image with text directly below the header, whenever I load my shop on either desktop or mobile, the image shifts up into the header before going back down. I would like to contain the image with text and not have it shift up or down.

Thanks.

Edit: I use the narrative theme.

2

what theme do you use

3

Thanks for the response, I use the narrative theme.

4

can you share your website link to check the problem