How to remove adaptability from an adaptive site by one button?

Question

css

<meta name="viewport" content="width=device-width, initial-scale=1.0">

- it's in the
header

Answer 1

<script type=text/javascript>
        $('#full').click(function() {
            $('head').append('<meta name="viewport" content="width=1200px, initial-scale=0, user-scalable=1">')
        }
                        )
    </script>
<a id="full" href="#">Полная версия сайта</a>

Answer 2

Like this:
Or just remove it

Answer 3

In general, you can fix the width in size by clicking on your container. You can in <meta>, you can at least in styles. But if you completely remove it, then the width of the site will not be 1920, but most likely flat