CSS3另类运用_临摹苹果Mac系统界面，不过兼容改方面还不完善，暂仅在chrome或safari5中有完整效果，IE系列浏览器可能产生错误。-CSS3 alternative use _ copying Apple Mac system interface, but is compatible with change aspect is not perfect, there is a full effect only temporarily in chrome or safari5 in, I