They sent layouts for 640 and they say that 640 will fit under 320 by itself - is that true?

Question

css

So it goes.
Many times already sent layouts with a minimum size of 640.
If the truth is 640 can itself become 320 - how to do it?
Something I can’t do with ordinary media queries to turn such tricks

Answer 1

Get up and go.
You, as a layout designer, must know for yourself what kind of layout you need. And if a designer or a customer tells you what and how to do, then this is a little strange.
And yes ... of course nothing will "get up". Everything must be done by hand. And if the layout is not provided for a smaller size, then all this needs to be thought out by yourself.

Answer 2

Why ask?
Do it first under 640 and see if it "gets up" or not at 320. If not, then show the customer, explain what and how.

Answer 3

Make fonts in REM, and all blocks in percentages. Give the parent itself a max-width of 100% and overflow: hidden and everything will fall into place as it should