border-radius/-webkit-border-radius doesn't cut off images. The following: {position:absolute; top:100px; left:50%; margin-left: -300px; width:600px; height:600px; animation: trans 20s infinite; border-radius: 300px; -webkit-border-radius: 300px; border: solid 5px #F00; z-index: 1; overflow:hidden;} It works fine in FF and Chrome, but some reason it doesn't work in Safari (quite surprising since it's works fine in Chrome).
I'm sorry if left some information out, I never reported a bug before. Feel free to e-mail me for additional info and/or the entire code.
It's difficult to confirm this bug without a test case. We don't believe there is an ongoing issue here. If you do feel there is a problem, please REOPEN this bug and include a test case illustrating the issue.