Responsive web design css media queries and Iphone different resolutions

Question

I am using media queries on my app and it seems to work well and show up well in http://www.responsinator.com/ but when I view in a real iPhone 4 my webpage is not readable at all. It looks all zoomed in.

Trying to find out the actual cause, it seems that responsinator shows iPhone 4 resolution as 320 x 480 whereas this website http://www.iphoneresolution.com/ shows as 640×960. My iPhone looks to be at 640×960. How should I handle these cases in CSS media queries?

Answer 1

Add the viewport meta tag to the head-area of your html files:

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

This code makes your website scale properly.