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Fixes your cordova screen resolution and media query problems.

The problem

Mobile Browsers, especially across Android 2.3-4.4, handle mediaQueries differently. Some ignore -webkit-device-pixel-ratio, some use it as a multiplier of a given -device-height, some not. Sometimes you get a low resolution by default although you have a highres device. Furthermore, the amount of screens out there is enormous with new screen definitions emerging all the time. IE again differs. While one should program responsive css, you sometimes might want to use pixels for padding or margin or for the root elements font-size, which other rem or em values depend on. We cannot use vh etc. yet as it is not supported by older devices.

The solution

Write as much responsive css as possible, avoid pixel values whenever possible.

Set html and body in your css file to 100%:

html, body {
    width: 100%;
    height: 100%;

Put anyscreen.js into your index.html

<script type="text/javascript" src="path/to/anyscreen.js"></script>

Move all pixel definitions into a second css file, e.g.

html {

into e.g.


This file may not contain comments. Instead of linking your css file in the <head> tag, load it after your device is ready with

    /* do your stuff */

and you're done. You can pass as many css filepaths as you want. anyscreen also maps physical pixels to software pixels, giving you the full resolution of your device and the following readable values:

app.deviceHeight  // the true height of your DEVICEs screen in pixels
app.deviceWidth  // the true width of your DEVICEs screen in pixels 
app.containerWidth  // the true width of your app container, without system bars
app.containerHeight // the true height of your app container, without system bars

What you get

All your elements will look exactly the same across all platforms, all screens. All your apps will have the full resolution of the device.

Platform support

  • iOS 6,7,8
  • Android 2.3, 4.x, 5.x
  • Windows Phone 8.x (windows 10 coming soon)

How to set pixel sizes

1px is one pixel on a device with 1080px width and >=1920px height, so this is your starting point.

How it works

First, it attempts to map your software resolution to the devices native resolution. Second, it measures if the attempt was successful and gets the available dimensions in pixels. Finally, it scales your css values to the actual solution.

Why media queries are the wrong approach anyway

Media queries are intended to deliver different layouts, not for delivering the same layout. One would definitely use them for targeting portrait/landscape adaptations. In most cases it makes sense that your app looks the same across all resolutions, like done in native programming. And you should not have to bother about this. You should just program one design/layout and the software should adapt it automatically to look the same.


Fixes your cordova screen resolution and media query problems



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