CSS翻转动画在Safari中不起作用

Based on this excellent blogpost I implemented a flip-animation on a page of a web-application I am working on. At first I used the CSS-classes as presented in the top of the blogpost but unfortunately this doesn't work in IE10 so I started using the CSS-class that was proposed as a solution to get it working in IE10 presented at the end of the blogpost. I implemented