Opera heard in his earlier operas such as "Der fliegende Holländer", "Tannhäuser" and "Lohengrin"; and he was prepared to violate accepted musical conventions, such as tonality, in his quest for greater expressivity. In his mature music dramas, "Tristan und Isolde", "Die Meistersinger von Nürnberg", "Der Ring des Nibelungen" and "Parsifal", he abolished the distinction between aria and recitative in favour of a seamless flow of "endless melody". Wagner also brought a new philosophical dimension to opera in his works, which were usually based on stories from Germanic or Arthurian legend. Finally, Wagner built his own opera house at Bayreuth with part
Features of the Opera web browser "Standalone Installation (USB)" which doesn't make any modifications to the system it's executed on. This section describes the notable features that have been available in older versions of the web browser. Many of these features were removed when Opera switched from its legacy layout engine, Presto, to the Chromium-based Blink engine. Presto was introduced in Opera 7, in 2003, and was used until Opera 12.18, in 2016. Tooltips were small information boxes. These boxes displayed some additional relevant information. Some features of them were: You could disable the tooltips. You were able to make text be bold, "italic" and underlined