How to remove the white background from the site?

Question

css

I tried to make an adaptive design, everything seemed to work out, but now at a low resolution, everything seems to fit the diagonal, but a white background remains on the edge. How can this be fixed?

Answer 1

Finally solved this problem with
overflow-x:hidden;

Answer 2

This is most likely some element stretched to such a width, and the rest fit to the screen size, which is why you have such a white background on the right. Usually happens because of the p tag.