Moving the mouse to the middle of an element.

        :Args:
         - to_element: The WebElement to move to.

def move_to_element(self, to_element):
        """
        Moving the mouse to the middle of an element.

        :Args:
         - to_element: The WebElement to move to.
        """
        if self._driver.w3c:
            self.w3c_actions.pointer_action.move_to(to_element)
            self.w3c_actions.key_action.pause()
        else:
            self._actions.append(lambda: self._driver.execute(
                                 Command.MOVE_TO, {'element': to_element.id}))
        return self