The problem all started with what appears to be a really simple and helpful idea. As CSS 3 was being developed, the idea was that vendor prefixes could be added to attributes to allow for flexibility during the early implementation. The trouble is that WebKit has become a de facto standard. So much so that many programmers think that -webkit- means CSS for the mobile web. To avoid being left out in the cold by pages that are only viewable using a WebKit browser other browser makers are planning to add the non-standard WebKit CSS to so destroying any pretense that there exists a single standard for HTML5/CSS3.
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