-webkit
prefix was added to them to ensure that these functions would not affect any current and future declarations, as well as the sense that they only work in WebKit. But now, a few years later, the CSS Working Group working group decided to correct the “harm” caused by sites that use WebKit-specific functions. Otherwise, they say, "it will destroy the current procedure for approving standards."
WebKit, the rendering engine at the heart of Safari and Chrome, which runs on iPhone, iPad and Android, has now become absolutely dominant in the mobile web. Technically, the mobile web is filled with sites that only work on WebKit, while other browsers and their users suffer from this. [...]
Without your help, without a strong reaction, this can only lead to one thing, and we are now dangerously close to this result: other browsers will also begin to maintain / implement the -webkit- * prefix, turning the experimental version of the function into a new universal standard. Thus, the only implementation will become a world monopoly. Again. This will destroy our standard adoption procedure. There can be no other option, the only question is the timing of when this will happen. [...]
I also ask WebKit browser makers, namely Apple and Google, to provide as soon as possible to the CSS Working Group a full technical description for proprietary CSS-like functions that they have given to the whole world on their iOS and Android devices, thereby harming the Open Network.
-webkit
prefix are the greatest CSS enhancement for ten years, and the co-chair of the working group calls them "CSS-like properties." If WebKit developers were waiting for the approval and approval of the next version of the official CSS standard, it would take another ten years. Without the experimental features in WebKit, the web would clearly be worse. I myself use many of the specific properties of CCS in WebKit on my website , and the Kudos button to the right of each article over which the cursor needs to be held is made almost entirely on the properties of CSS animation, first described and implemented for WebKit.
Source: https://habr.com/ru/post/138004/