jQuery下拉菜单风格的动态信息提示框效果，当你的鼠标在主菜单上经过时，信息提示框就会显示出来，如果你依次从各个主菜单上快速滑过，则提示框会有一种幻影的延时效果，看上去很不错。-jQuery dynamic drop-down menu style message box effect, when you mouse over on the main menu, the message box will be displayed, if you turn quickly slip　the respective main menu, then there will be a prompt box Phantom delay effect, looks very good.