jQuery网页左侧3D展开二级菜单基于jquery-1.9.1.min.js制作，鼠标移入侧边栏，二级菜单3D展开，鼠标hover背景变色，鼠标移入二维码背景变色。-JQuery web page on the left side of the 3 d on the secondary menu based on jQuery- 1.9.1. Min. Js, the mouse moved to the sidebar, the secondary menu, 3 d mouse hover