Responsive navbar
A responsive navbar collapses its links into a toggle button on small screens.
In this page:
Syntax
<nav class="navbar navbar-expand-lg">
<div class="container-fluid">
<button class="navbar-toggler" data-bs-toggle="collapse" data-bs-target="#nav-id">
<span class="navbar-toggler-icon"></span>
</button>
<div class="collapse navbar-collapse" id="nav-id">...</div>
</div>
</nav>Responsive navbar
Use navbar-expand-{breakpoint} so links show in a row from that size and collapse below it. The .navbar-toggler button toggles the .collapse.navbar-collapse block through the JS bundle.
Add navbar-nav, dropdowns, search forms and utilities to build complete headers. Offcanvas can replace the collapse for a sliding mobile menu.
Note:
Pick the expand breakpoint based on how many links you have.
Example: Responsive navbar
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<link href="https://cdn.jsdelivr.net/npm/[email protected]/dist/css/bootstrap.min.css" rel="stylesheet">
<script src="https://cdn.jsdelivr.net/npm/[email protected]/dist/js/bootstrap.bundle.min.js"></script>
</head>
<body class="p-3">
<nav class="navbar navbar-expand-md bg-primary" data-bs-theme="dark">
<div class="container">
<a class="navbar-brand" href="#">ResponsiveNav</a>
<button class="navbar-toggler" data-bs-toggle="collapse" data-bs-target="#rnav" aria-label="Toggle navigation"><span class="navbar-toggler-icon"></span></button>
<div class="collapse navbar-collapse" id="rnav">
<ul class="navbar-nav ms-auto"><li class="nav-item"><a class="nav-link active" href="#">Home</a></li><li class="nav-item"><a class="nav-link" href="#">Docs</a></li><li class="nav-item"><a class="nav-link" href="#">Blog</a></li></ul>
<form class="d-flex ms-md-3" role="search"><input class="form-control me-2" type="search" placeholder="Search" aria-label="Search"><button class="btn btn-light">Go</button></form>
</div>
</div>
</nav>
</body>
</html>Live Example
Related Topics
Common Mistakes
- Missing collapse id matching
- No navbar-expand class
- Forgetting the JS bundle
Chapter Summary
- navbar-expand-* sets the breakpoint
- toggler controls the collapse
- navbar-collapse holds links
- Offcanvas is an alternative
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