Link to Trivia game: here Shows how to use HTML, CSS and JS only to create a quiz form.
[wip: fix save highscores]*
What is a HUD element?
HUD elements could include a mini-map in the corner, a health bar, and a variety of other items to aid the player. The HUD is there to present the player with important information while not being distracting. A great example of a heads up display is in the Halo series.