Firefox OS Media Query
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.
![CSS Filters]()
CSS filter support recently landed within WebKit nightlies. CSS filters provide a method for modifying the rendering of a basic DOM element, image, or video. CSS filters allow for blurring, warping, and modifying the color intensity of elements. Let's have...
![CSS Gradients]()
With CSS border-radius, I showed you how CSS can bridge the gap between design and development by adding rounded corners to elements. CSS gradients are another step in that direction. Now that CSS gradients are supported in Internet Explorer 8+, Firefox, Safari, and Chrome...
![MooTools HTML Police: dwMarkupMarine]()
We've all inherited rubbish websites from webmasters that couldn't master valid HTML. You know the horrid markup: paragraph tags with align attributes and body tags with background attributes. It's almost a sin what they do. That's where dwMarkupMarine comes in.
![HTML5 download Attribute]()
I tend to get caught up on the JavaScript side of the HTML5 revolution, and can you blame me? HTML5 gives us awesome "big" stuff like WebSockets, Web Workers, History, Storage and little helpers like the Element classList collection. There are, however, smaller features in...
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. :)