An HTML elements style is determined by the CSS applied to the element. You don't need to understand anything about other such environments at this stage in your learning; we just wanted to make it clear that events can differ in different programming environments. Its simple HTML with some facts about freeCodeCamp. Events are things that happen in the system you are programming the system produces (or "fires") a signal of some kind when an event occurs, and provides a mechanism by which an action can be automatically taken (that is, some code running) when the event occurs. In the following example, we have a single