Simple CSS3 Dropdown Menu

      from:http://cssdeck.com/labs/another-simple-css3-dropdown-menu

PyQt:给窗口设置背景图片(两种方法) | Set QMainWindow Background Image, Python QT

  from:http://codeprogress.com/python/libraries/pyqt/showPyQTExample.php?index=424&key=QMainWindowBackground 继续>

在用户配置中存储一个NSColor(UIColor) | Save a color in NSUserDefaults

For Objective C place like this.

To get back like this.

For Swift set like this [cra 继续>

预加载web内容:在tableview、view中插入带有webview的viewController来实现