A navbar is a responsive navigation header that can include branding, navigation links, dropdowns, and togglers for mobile views. Bootstrap makes it super easy to build navbars with classes like .navbar, .navbar-expand-lg, and .navbar-light or .navbar-dark.
Official docs: Bootstrap Navbar Docs
Type or edit the navbar code below and preview it live:
.navbar with .navbar-expand-lg for responsive navbars, and use .navbar-dark bg-dark for a dark background. The navbar-toggler + collapse classes make it mobile-friendly.