Firefox OS Media Query

By  on  

Firefox OS is an awesome new HTML5-based mobile operating system.  Some would says it's epic, I just think it's...super epic.   The "native" languages are HTML, CSS, and JavaScript -- it's enough to make a Web Developer weep.  Anyways, it's important to know how to target currently released Firefox OS devices with CSS media queries.  Here's how!

The CSS

The Firefox OS base media query (for popular released devices) is actually that of a common small mobile phone:

@media only screen and (min-device-width : 320px) and (max-device-width : 480px) {
	
	/* styles go here */
	
}

This media query accommodates for both landscape and portrait views of released Firefox OS devices.

As Firefox OS is ported to watches, tablets, and other devices, you'll need to keep accommodating other media queries, as you should already.  Keep in mind that Firefox OS doesn't have set dimensions, but this will cover to released phones to this point.

Recent Features

  • By
    Create a CSS Cube

    CSS cubes really showcase what CSS has become over the years, evolving from simple color and dimension directives to a language capable of creating deep, creative visuals.  Add animation and you've got something really neat.  Unfortunately each CSS cube tutorial I've read is a bit...

  • By
    Convert XML to JSON with JavaScript

    If you follow me on Twitter, you know that I've been working on a super top secret mobile application using Appcelerator Titanium.  The experience has been great:  using JavaScript to create easy to write, easy to test, native mobile apps has been fun.  My...

Incredible Demos

  • By
    Introducing MooTools LinkAlert

    One of my favorite Firefox plugins is called LinkAlert. LinkAlert shows the user an icon when they hover over a special link, like a link to a Microsoft Word DOC or a PDF file. I love that warning because I hate the surprise...

  • By
    Table Cell and Position Absolute

    If you follow me on Twitter, you saw me rage about trying to make position: absolute work within a TD element or display: table-cell element.  Chrome?  Check.  Internet Explorer?  Check.  Firefox?  Ugh, FML.  I tinkered in the console...and cussed.  I did some researched...and I...

Discussion

  1. But why *would* you target Firefox OS? It seems to me that the best approach is to build a web app that works great across all viewport widths. It’s useful to know which MQ widths are currently used on Firefox OS devices, but hard-coding it into the CSS? I don’t know.

    • Yes, building a site that looks good everywhere is still the key, but knowing the media query that targets those devices is still important. :)

Wrap your code in <pre class="{language}"></pre> tags, link to a GitHub gist, JSFiddle fiddle, or CodePen pen to embed!