How to disable font size scaling on mobile devices?

Question

css

Hello, tell me how to disable, or rather, understand the reason for scaling (increasing) some blocks with text on a site opened on a mobile device.
For example, the site planetashop.ru - the text: "Your city" (above), "Register now ..." (under the header), two paragraphs in the footer. I don't understand the logic. Please help...
Thank you.

Answer 1

text-size-adjust