My preview website doesn't look like my published website


I just made this website, and added a video as a background by HTML embed.
The designer view and preview is good, but when i go to the link of the website, all the middle section disappear, i only have the background video.

The problem is that i cant change anything because on the designer, nothing seems to be hide.

I don’t know if its due to the custom code i put to the HTML Embed to have the background and make the video full screen even on the responsive version. But it still doesnt explain why do i have the right screen on preview, not on the published site.
( I am not a developper, i am just discovering all of these through webflow :sweat_smile:

Thank you for you help !

Here is my site Read-Only: [LINK][1]
([how to share your site Read-Only link][2])

[1]: http:// Webflow - TATCHI Studio
[2]: Share a read-only link | Webflow University