Horizontal scrolling on iphone?

Question

iPhone

I register
but the site on an iPhone in portrait mode can still move horizontally and see a white background on the sides. How to fix it so that the site scrolls only vertically?

Answer 1

The question is old, but there is no answer, but in Google in the first place. That's why I'll answer =)
So that on iPhones / iPads it doesn't scroll sideways, you need to set position: relative to html, body;

html, body { 
    position: relative;
    max-width: 100%; 
    overflow-x: hidden; 
}

Answer 2

Check if there are elements that fit in width (greater than viewport)
Well,

<meta name="viewport" content="width=device-width, initial-scale=1.0, user-scalable=no, maximum-scale=1.0"/>