Content that is officially supported (YouTube, Twitch, Vimeo, Jet-Stream) is displayed in an embedded video player that is responsive to the changing dimensions of the page. This means that if the content box changes size, the player will still fit inside the box, but it may get black bars on the top or sides of the player. However, if you decide to use custom content or a non-supported player through the use of the iframe option, it is the responsibility of the organiser that this content works as expected and not Let's Get Digital.