Why is responsive.css not included?

Question

css

There is a landing page - kotikypodarok.ru/fl but for some reason the file kotikypodarok.ru/fl/files/css/responsive.css
does not work in the mobile version . Moreover, if you just resize the browser window on your computer, then everything is OK, the responsive. css works and the site becomes in mobile layout, but not directly from the phone. Why is that?

Answer 1

you have in your source code
error in the word viewport

<meta name="viewport" content="width=device-width, initial-scale=1.0" />

Answer 2