help, where do i find the coding to edit the rich text and featured sections in prestige

[SHome]

I want to adjust the margin on some sections of the Prestige theme, I was able to do this to most sections but can't find the code for the 'rich text with image', 'featured product' and 'featured collections' anywhere. 

[Denishamakwana]

Welcome to shopify community.

Please share your store URL and if your store is password protected then please provide password too.

Thank you.

[SHome]

its not currently my active theme

[Denishamakwana]

Please give preview URL

Thank you.

[SHome]

https://sayershome.com/?_ab=0&_fd=0&_sc=1

[Denishamakwana]

Please add below css in bottom of assets/theme.css file

.shopify-section--divider {

        display: none;

}

Then give proper margin you want in every section.

Thank you.

[SHome]

give the proper margin for each section where?

as I can't find the code for several.

[Denishamakwana]

edit code / assets/theme.css file

[SHome]

I can't find the code for several sections, thats why I am asking for help. Otherwise I know how to adjust the margin in the code.