Un drapeau   animé   anglais  apparait  à  l' top right corner of each page is a direct  link to a translation site(An english animated flag appears at the top right corner of each page, it's a direct link to a translation site)

What does this red animated question mark mean?

An internal search engine (green rectangle) has been integrated at the top left of the page (Site update) under the sound command button. (The sound command is missing in the mobile version)