We made a mobile version of the site, but it does not stretch to full screen. How to set up scalability?

Question

Adaptive design

Here is the actual site

Answer 1

<meta name="viewport" content="width=device-width, initial-scale=1">

Answer 2

Your dimensions are in pixels, why should the site be stretched?

Answer 3

I'm sorry, I'm not too exalted in layout, but maybe that's why?
.wrapper {position: relative; width: 470px;}

Answer 4

Check out this and this .
Must decide.