diff options
Diffstat (limited to 'site/content')
| -rw-r--r-- | site/content/docs/4.5/components/navbar.md | 45 |
1 files changed, 45 insertions, 0 deletions
diff --git a/site/content/docs/4.5/components/navbar.md b/site/content/docs/4.5/components/navbar.md index 07fff3b35f..25c5718851 100644 --- a/site/content/docs/4.5/components/navbar.md +++ b/site/content/docs/4.5/components/navbar.md @@ -438,6 +438,51 @@ Also note that **`.sticky-top` uses `position: sticky`, which [isn't fully suppo </nav> {{< /example >}} +## Scrolling + +Add `.navbar-nav-scroll` to a `.navbar-collapse` (or other navbar sub-component) to enable vertical scrolling within the toggleable contents of a collapsed navbar. By default, scrolling kicks in at `75vh` (or 75% of the viewport height), but you can override that with inline or custom styles. At larger viewports when the navbar is expanded, content will appear as it does in a default navbar. + +Please note that this behavior comes with a potential drawback of `overflow`—when setting `overflow-y: auto` (required to scroll the content here), `overflow-x` is the equivalent of `auto`, which will crop some horizontal content. + +Here's an example navbar using `.navbar-nav-scroll` with `style="max-height: 100px;"`, with some extra margin utilities for optimum spacing. + +{{< example >}} +<nav class="navbar navbar-expand-lg navbar-light bg-light"> + <a class="navbar-brand" href="#">Navbar scroll</a> + <button class="navbar-toggler" type="button" data-toggle="collapse" data-target="#navbarScroll" aria-controls="navbarScroll" aria-expanded="false" aria-label="Toggle navigation"> + <span class="navbar-toggler-icon"></span> + </button> + <div class="collapse navbar-collapse" id="navbarScroll"> + <ul class="navbar-nav mr-auto my-2 my-lg-0 navbar-nav-scroll" style="max-height: 100px;"> + <li class="nav-item active"> + <a class="nav-link" href="#">Home <span class="sr-only">(current)</span></a> + </li> + <li class="nav-item"> + <a class="nav-link" href="#">Link</a> + </li> + <li class="nav-item dropdown"> + <a class="nav-link dropdown-toggle" href="#" id="navbarScrollingDropdown" role="button" data-toggle="dropdown" aria-expanded="false"> + Link + </a> + <ul class="dropdown-menu" aria-labelledby="navbarScrollingDropdown"> + <li><a class="dropdown-item" href="#">Action</a></li> + <li><a class="dropdown-item" href="#">Another action</a></li> + <li><hr class="dropdown-divider"></li> + <li><a class="dropdown-item" href="#">Something else here</a></li> + </ul> + </li> + <li class="nav-item"> + <a class="nav-link disabled" href="#" tabindex="-1" aria-disabled="true">Link</a> + </li> + </ul> + <form class="d-flex"> + <input class="form-control mr-2" type="search" placeholder="Search" aria-label="Search"> + <button class="btn btn-outline-success" type="submit">Search</button> + </form> + </div> +</nav> +{{< /example >}} + ## Responsive behaviors Navbars can use `.navbar-toggler`, `.navbar-collapse`, and `.navbar-expand{-sm|-md|-lg|-xl}` classes to determine when their content collapses behind a button. In combination with other utilities, you can easily choose when to show or hide particular elements. |