hi there i'm trying to build a responsive full screen website based on prestashop 1.7 but i have an issue from long time that i have tried to solve but failed so the thing is i made the width 100%.
and margin 0, the page is full but not really full there is a small gap on right hand screen, so when i put padding-right to 5px i really get the fully screen but a second problem apears a horizontal scroll bar that is verry enoying i have screen shot of my issue can guys sugest a solution for that ? thanks.

no-padding.PNG

with-padding.PNG