The correct way to write media queries in CSS for the iPhone

After successfully formatting a website for various devices using an online responsive design tester and CSS declarations like 

@media only screen and (max-width: 480px)
, I encountered an issue during testing on an actual iPhone. The browser was not computing these CSS declarations properly.

I attempted using max-device-width as well as setting the initial scale with 

<meta name="viewport" content="width=device-width, initial-scale=1.0, user-scalable=no"/>
. I also tried without the initial scale setting but to no avail.

In addition, I experimented with 

@media screen and (-webkit-min-device-pixel-ratio: 2), screen and (max--moz-device-pixel-ratio: 2)

And also tried: 

only screen and (-webkit-min-device-pixel-ratio : 2),
only screen and (min-device-pixel-ratio : 2)

Despite all these attempts, none have successfully targeted the iPhone 3/4. What could be missing in order to effectively target these specific iPhones?

iphonecssmobilemedia-queriesdevice

Answer №1

Media queries have let me down too many times. If you're struggling, consider using a JS or server-side approach to detect the device instead. Here's a snippet of JS code you can try:

var pixelRat = window.devicePixelRatio;
var screenWidth = screen.width;

//Handling different devices based on their specifications
if ( pixelRat >= 2 )
{
  $('meta[name=viewport]').attr('content','initial-scale=.5, maximum-scale=.5');
  $('link[name=mainstyle').attr('href', 'css/iphoneHD.css');
}
else if ( pixelRat < 2 && screenWidth == 320 )
{
  $('meta[name=viewport]').attr('content','width=device-width, minimum-scale=1.0, maximum-scale=1.0');
  $('link[name=mainstyle]').attr('href', 'css/iphone.css');
}
else if ( pixelRat < 2 && screenWidth == 768 )
{
  $('meta[name=viewport]').attr('content','width=device-width, minimum-scale=1.0, maximum-scale=1.0');
  $('link[name=mainstyle]').attr('href', 'css/mobile.css');
  $('link[name=loginpadstyle]').attr('href', 'css/loginpad.css');
}
else
{
  $('meta[name=viewport]').attr('content','width=device-width, minimum-scale=1.0, maximum-scale=1.0');
  $('link[name=mainstyle').attr('href', 'css/style.css');
}

Answer №2

By utilizing the following CSS declaration, I have effectively targeted iPhones and other devices:

@media all and (max-width: 480px)  {
    /* Insert iPhone-specific CSS styles here */  
}

Thank you for your valuable contributions!

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