Does IE11 Support CSS Variables? A Solution with Polyfills
Nov 12, 2024 am 09:52 AM
Does IE11 Support CSS Variables? A Solution with Polyfill
IE11 lacks support for CSS variables, which can be a hindrance when developing websites across multiple browsers. However, there's a solution: polyfills.
What is a Polyfill?
A polyfill is a script that bridges the gap between browser capabilities, allowing unsupported features to be implemented.
CSS Variables Polyfill
For IE11, the "css-vars-ponyfill" is a reliable option for implementing CSS variables. It provides a client-side transformation of custom properties to static values.
Installation
The polyfill can be installed via GitHub, NPM, or directly from the demo page on Codepen.
Usage Example
Here's an example of how to use the polyfill to enable CSS variables in IE11:
<script src="css-vars-ponyfill.js"></script>
<style>
:root {
--primary-color: red;
}
</style>
<p>This text will now be red.</p>
Features
- Transformation of root-level custom properties to static values
- Live updates of runtime values in modern and legacy browsers
- Support for chained and nested var() functions
- Lightweight and dependency-free
Limitations
- Limited to root-level custom property declarations
- Use of var() is restricted to property values
Conclusion
With the "css-vars-ponyfill," IE11 users can enjoy the full functionality of CSS variables. This allows for improved cross-browser compatibility and a consistent user experience across the web.
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