Parallax Section Background Full/Small text shift on the right side and overlap

Shapely
1

Hi,
I have several problems in Parallax Section setting when choosing Background Full or Small options : the text shifts on the right instead of being centered.
Moreover, time to time, in a random way, contiguous parallax sections overlap.
Could you help me to fix these problems ?

Thank you very much !!
Best
Angela

2

Hi there

Hope you are having a good day and thank you for your question
In order to check your question i need to see your live website, please provide url and i will take a look

3

Hi,
Thank you for your answer.
My site url is : vineta.fr

Thanks
Best

4

HI There

i see some extra classes are added (offset) in the jumbotron section and this is the reason why its shifted to the right, can you tell me why is that? and why you added this offset class?