-prefix-free lets you use only unprefixed CSS properties everywhere. It works behind the scenes, adding the current browser’s prefix to any CSS code, only when it’s needed.
“[-prefix-free is] fantastic, top-notch work! Thank you for creating and sharing it.”
— Eric Meyer
<link> or <style> elements and adds a vendor prefix where neededstyle attribute and adds a vendor prefix where needed<link> or <style> elements, style attribute changes and CSSOM changes (requires plugin).css() method get and set unprefixed properties (requires plugin)@import-ed files is not supportedstyle attribute) won’t work in IE and Firefox < 3.6. Properties as well in Firefox < 3.6.Check this page’s stylesheet ;-)
You can also visit the Test Drive page, type in any code you want and check out how it would get prefixed for the current browser.
Just include prefixfree.js anywhere in your page. It is recommended to put it right after the stylesheets, to minimize FOUC
That’s it, you’re done!
The target browser support is IE9+, Opera 10+, Firefox 3.5+, Safari 4+ and Chrome on desktop and Mobile Safari, Android browser, Chrome and Opera Mobile on mobile.
If it doesn’t work in any of those, it’s a bug so please report it. Just before you do, please make sure that it’s not because the browser doesn’t support a CSS3 feature at all, even with a prefix.
In older browsers like IE8, nothing will break, just properties won’t get prefixed. Which wouldn’t be useful anyway as IE8 doesn’t support much CSS3 ;)
Test the prefixing that -prefix-free would do for this browser, by writing some CSS below:
Over time, Crossy Road has evolved with new features, characters, and game modes. The game has been released on various platforms, including PC, consoles, and even smartwatches. The game's popularity has led to the creation of numerous clones and spin-offs, but the original Crossy Road remains the most beloved.
If you are looking to showcase a clone or a similar web-based game hosted on GitHub Pages , 🎮 New Project: Bringing the Arcade to the Browser!
The website also features:
Eli pressed the space bar and the chicken leapt onto a log. For a moment, time narrowed to pixel-perfect decisions: when to hop, when to wait, how to read the rhythm of the moving platforms. The simplicity of the mechanics revealed something larger—how small acts, repeated, become ritual. For players, crossing the road was a metronome; for creators, each patch was a way to keep the ritual alive.
The world beyond the screen kept moving—cars, trains, conversations—while across the internet, a tiny game continued doing what it always had: offering a brief, delightful challenge and, sometimes, a small human story hidden in the commit history for anyone curious enough to look.
Over time, Crossy Road has evolved with new features, characters, and game modes. The game has been released on various platforms, including PC, consoles, and even smartwatches. The game's popularity has led to the creation of numerous clones and spin-offs, but the original Crossy Road remains the most beloved.
If you are looking to showcase a clone or a similar web-based game hosted on GitHub Pages , 🎮 New Project: Bringing the Arcade to the Browser! crossyroad github io
The website also features:
Eli pressed the space bar and the chicken leapt onto a log. For a moment, time narrowed to pixel-perfect decisions: when to hop, when to wait, how to read the rhythm of the moving platforms. The simplicity of the mechanics revealed something larger—how small acts, repeated, become ritual. For players, crossing the road was a metronome; for creators, each patch was a way to keep the ritual alive. Over time, Crossy Road has evolved with new
The world beyond the screen kept moving—cars, trains, conversations—while across the internet, a tiny game continued doing what it always had: offering a brief, delightful challenge and, sometimes, a small human story hidden in the commit history for anyone curious enough to look. If you are looking to showcase a clone