On ios, the layout does not scale like on android?

Question

Bootstrap

on Android, the layout is displayed correctly, but on iPhone it adapts, but does not scale! why? and how to fix it? here is the site djkj.ru
in emulators, by the way, everything is fine

Answer 1

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

instead of 1 we write 1.0