OverPicture for Safari 是一款运行在Mac平台上的Safari视频扩展插件，这款OverPicture Mac破解版的主要功能就是支持HTML5格式的视频画中画模式，非常的好用
OverPicture is a Safari Extension that allows you to play any web video in the new Picture-In-Picture mode. Press the play/pause button in any web video player in Safari and then in the toolbar PIP button and the video will start playing in Picture-In-Picture over your windows. And it will even embed custom buttons in some video players like YouTube.
Note: You have to open the app and then enable the Safari App Extension in Safari Preferences.