-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:
After launching:
While often marketed for broad Windows compatibility, Version 4.7.0 is architected primarily for Windows 7 and Windows 8.1 kernels. On modern Windows 10 or Windows 11 systems, the software generally operates in "Compatibility Mode." Users may encounter unsigned driver warnings, necessitating a manual override in System Settings to allow the device driver installation.
Always remember that QRMA results are for reference only and should not replace professional medical advice or clinical diagnostics.
Operators must interpret these values as indicators for further lifestyle changes or professional medical consultation, rather than definitive clinical findings.
The is provided as-is for experimental and educational purposes. It is not a medical device. The FDA has issued warning letters to distributors of similar devices (e.g., FDA Warning Letter 320-19-05). Using this software does not replace blood tests, MRI, X-ray, or consultation with a qualified doctor. Self-diagnosis or treatment based on quantum resonance reports can lead to serious health consequences.
False positives are common because the software communicates directly with USB hardware and modifies registry keys. Add the installation folder to your antivirus exclusions.
After launching:
While often marketed for broad Windows compatibility, Version 4.7.0 is architected primarily for Windows 7 and Windows 8.1 kernels. On modern Windows 10 or Windows 11 systems, the software generally operates in "Compatibility Mode." Users may encounter unsigned driver warnings, necessitating a manual override in System Settings to allow the device driver installation. After launching: While often marketed for broad Windows
Always remember that QRMA results are for reference only and should not replace professional medical advice or clinical diagnostics. Operators must interpret these values as indicators for
Operators must interpret these values as indicators for further lifestyle changes or professional medical consultation, rather than definitive clinical findings. The FDA has issued warning letters to distributors
The is provided as-is for experimental and educational purposes. It is not a medical device. The FDA has issued warning letters to distributors of similar devices (e.g., FDA Warning Letter 320-19-05). Using this software does not replace blood tests, MRI, X-ray, or consultation with a qualified doctor. Self-diagnosis or treatment based on quantum resonance reports can lead to serious health consequences.
False positives are common because the software communicates directly with USB hardware and modifies registry keys. Add the installation folder to your antivirus exclusions.