Main Content Area

This page demonstrates a fully responsive navigation header that works seamlessly across desktop, tablet, and mobile viewports. The navigation controls are implemented with plain, accessible HTML, CSS, and JavaScript—no external dependencies or network requests required. Resize your browser window or test on different devices to see the responsive behavior in action. The layout is carefully crafted to prevent horizontal scrolling at standard breakpoints of 360px, 768px, and 1440px wide.