Problems installing plugin in the Neoclassical theme

Hello, I managed to install this excelent plugin in Neoclassical theme, and put the tag in header.php, as is instructed on page explanation, however, the content texts of the pages created with the plugin are also clickable and “hover” when i pass the mouse, like links. How to solve? Anyone had something similar? Thank you

http://ww.wp.xz.cn/extend/plugins/dropdown-menu-widget/