Browsing https://readmoo.com/, select a book, hover over some text in the page then hover over the text of the buttons at the right of the page and the pop-up appears but always in its previous position, not in a new position according to the currently highlighted text.
Browsing https://readmoo.com/, select a book, hover over some text in the page then hover over the text of the buttons at the right of the page and the pop-up appears but always in its previous position, not in a new position according to the currently highlighted text.