This example presents a minimal web page titled “Tyler PEA” that integrates a collapsible navigation bar using Bootstrap 4. The page loads a separate header fragment (`head.html`) via jQuery’s `load()` method, embedding the navbar within a `<div id="nav-placeholder">`. The main content includes a static container with placeholder text describing the responsive navigation behavior. No custom data visualization or charting library is used; instead, the demonstration focuses on assembling a responsive HTML interface with Bootstrap’s grid and navbar components.