It's all possible with custom CSS. If you let me know specifically what you want done on which URLs I can give you the CSS for it.
This is my url: https://saipoddutur.com/ - across all my pages I want the left and right margin to be minimal, because while using a mobile phone white spaces look excessive, will send photos

Good question Sai! This is an expected biproduct of a growing market. After we release our static feature (coming next week!) we have a few things we'll put out that will really place us in a game of our own. Excited for you all to see.
Great !! M excited for static feature and memberstack integration !!