How to test websites for responsiveness?

Question

css

The bottom line is that the client asked to remove the adaptability on the site.
I removed it, now the same site is displayed on the phone, only in a "reduced version".
Essence of the question: When I check whether the adaptability on the site is completely removed by narrowing the browser screen, it breaks, it still tries to adapt, but when I check the mob on the Google emulator. devices are fine. does not break, looks like it should.
I apologize in advance for the stupid question, but what's the point?

Answer 1

"removed" - media (ugh meta :) line was removed? so mobiles then render approximately under 980 and not under their real size. and the desktop browser compresses more strongly than 980? well here it is

Answer 2

You need to remove the meta tag with the viewport from the head.
+ it all depends on how you set the size of the blocks. They should all be set statically in px. Well, except for the height of course :)

Answer 3

you may have cached styles, try updating ctrl + F5