This is the exact same page as the previous example, but DOES NOT use the viewport meta tag.
On a mobile device, you should notice that the page loads already zoomed out.
The actual viewport width your mobile device is choosing for this page will
be different for different mobile devices.
As suggested at the bottom of the previous example, you can use the Devices Toolbar on a traditional screen
to resize the viewport and see what this page would look like on various small devices.
That is, if you use the Devices Toolbar and resize this page until looks about like it does on your phone,
you can deduce the approximate viewport width (how many CSS pixels wide) your mobile device is using for this non-responsive page.