Unprefixed `appearance `

The significant role of third-party contributors in advancing browser technology is often overlooked. A prime example is Bloomberg's commissioning of Igalia to implement CSS Grid across various browsers.

This article highlights another such collaboration, with Bocoup tackling the appearance property. While the original Twitter thread detailing this effort is fragmented, a linked thread provides a comprehensive account (though a blog post would be ideal).

The project spanned several years:

Two years ago, Firefox engaged us to address inconsistencies within the CSS appearance property. The challenge arose from the disparate implementations of this property across different browsers in relation to form elements.

The process involved extensive research, rigorous testing, and substantial revisions to HTML and CSS specifications. An initial attempt to remove vendor prefixes resulted in website breakage and was subsequently rolled back. The team's perseverance eventually led to successful implementation across three major browsers: Chrome (completed), Firefox (in progress), and Safari (with an open bug and a clear path toward coordinated release).

This case underscores the complexity and time commitment required for such crucial browser updates, emphasizing the importance of meticulous accuracy. For a deeper dive into this topic, listen to ShopTalk 407 featuring Brian Kardell.

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