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
    LightFace:  Facebook Lightbox for MooTools

    One of the web components I've always loved has been Facebook's modal dialog.  This "lightbox" isn't like others:  no dark overlay, no obnoxious animating to size, and it doesn't try to do "too much."  With Facebook's dialog in mind, I've created LightFace:  a Facebook lightbox...

  • By
    Chris Coyier’s Favorite CodePen Demos

    David asked me if I'd be up for a guest post picking out some of my favorite Pens from CodePen. A daunting task! There are so many! I managed to pick a few though that have blown me away over the past few months. If you...

Incredible Demos

  • By
    MooTools Zoomer Plugin

    I love to look around the MooTools Forge. As someone that creates lots of plugins, I get a lot of joy out of seeing what other developers are creating and possibly even how I could improve them. One great plugin I've found is...

  • By
    External Site Link Favorite Icons Using MooTools and CSS

    I recently came upon an interesting jQuery article about how you can retrieve all external links within a page, build the address of the site's favorite icon, and place the favorite icon along side the link. I've chosen a different approach which...

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!