I have a site that looks crooked on a mobile phone, what should I do?

Question

Android

I have a simple site, it looks quite crooked on a mobile phone, I can’t hire a freelancer yet, because I’m concentrating all my attention on the desktop version, but it just so happened that while I’m making the desktop version, people go to the site from a mobile phone and probably they don’t very good impression.
How can you quickly deal with the situation?
My thoughts: Put a stub if the user comes from a mobile phone and give a warning there that the mobile version is in development and the user clicks: View the full version of the site.
Or somehow develop a mobile version yourself in a couple of days and use it for now. Are there any ready-made templates that I can quickly apply?
Maybe there are other options?

Answer 1

So depending on what site. Perhaps it’s easier not to finish the mobile version every time, but to make it adaptive right away.

Answer 2

jquerymobile.com