Should I Use Browser Prefixes or an Upgrade Request for CSS Flexbox Support?

Replacing Browser Prefixes with a Browser Upgrade Request

When rebuilding a website with CSS flexbox, one may encounter browsers that require vendor prefixes for flexbox support. While it's possible to maintain prefixes for a small user percentage, a cleaner approach is to ask outdated browser users to upgrade. This article explores methods for targeting older browsers and displaying an upgrade message.

CSS Upgrade Message

Using CSS alone, one can target and hide the upgrade message for modern browsers that fully support flexbox. @supports allows for feature detection, ensuring visibility only for browsers lacking support. Specific browser quirks are addressed with additional CSS rules, including IE 11 and Opera Mini.

HTML Upgrade Message

The upgrade message is displayed by including the '.browserupgrade' class in an HTML div. Inside the div, a message and a link to a browser upgrade page can be provided.

Additional Options

For more advanced solutions, consider:

• Modernizr: A JavaScript library that detects browser capabilities, including device, media queries, and flexbox support.
• PHP: Server-side logic can be used to redirect users to a specific page or show an upgrade message if their browser doesn't meet certain requirements.
• Browser-update.org: This service allows website owners to create upgrade prompts that automatically redirect users to popular browser download pages after a specified delay.

Conclusion

By employing these methods, website developers can avoid browser prefixes and maintain clean code. Visitors using older browsers will receive an upgrade message, ensuring optimal website experiences for all.

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