The Atlantic theme is a solid choice. Adjusting padding is definitely possible, and you’re on the right track using custom CSS sometimes it just needs a bit of fine-tuning to align with the theme’s structure.
I’d be happy to help you clean this up properly. If you can let me know which specific sections you’d like to adjust (for example: homepage sections, product pages, header, or footer), I can provide precise CSS or implement the changes directly to ensure everything looks consistent and responsive across devices.
That space is controlled by the section’s bottom padding in the theme’s CSS. I can adjust it precisely so the video transitions more smoothly into the next section, without impacting responsiveness or other areas of the site.
If you’re comfortable sharing the page URL, I’ll be able to review it closely and test the changes across both desktop and mobile to ensure everything remains consistent.