in English

Navbar

Dokumentasi lan conto kanggo header navigasi Bootstrap sing kuat, responsif, navbar. Kalebu dhukungan kanggo branding, navigasi, lan liya-liyane, kalebu dhukungan kanggo plugin ambruk kita.

Ing kaca iki

Cara kerjane

Mangkene sampeyan kudu ngerti sadurunge miwiti navbar:

Navbars mbutuhake mbungkus .navbarkaro .navbar-expand{-sm|-md|-lg|-xl|-xxl}kanggo responsif collapsing lan kelas skema werna .
Navbars lan isine minangka standar. Ganti wadhah kanggo mbatesi ambane horisontal kanthi cara sing beda-beda.
Gunakake kelas utilitas jarak lan fleksibel kanggo ngontrol jarak lan keselarasan ing navbar.
Navbars responsif minangka standar, nanging sampeyan bisa kanthi gampang ngowahi kanggo ngganti. Prilaku responsif gumantung marang plugin Collapse JavaScript.
Mesthekake aksesibilitas kanthi nggunakake <nav>unsur utawa, yen nggunakake unsur sing luwih umum kayata <div>, tambahake a role="navigation"kanggo saben navbar kanggo ngenali kanthi jelas minangka wilayah landmark kanggo pangguna teknologi assistive.
Tandhani item saiki kanthi nggunakake aria-current="page"kanggo kaca saiki utawa aria-current="true"kanggo item saiki ing pesawat.
Anyar ing v5.2.0: Navbars bisa tema karo variabel CSS sing scoped kanggo .navbarkelas basa. .navbar-lightwis ora digunakake lan .navbar-darkwis ditulis maneh kanggo ngganti variabel CSS tinimbang nambah gaya tambahan.

Efek animasi saka komponen iki gumantung marang prefers-reduced-motionpitakon media. Deleng bagean gerakan suda saka dokumentasi aksesibilitas kita .

Isi sing didhukung

Navbars dilengkapi dhukungan sing dibangun kanggo sawetara sub-komponen. Pilih saka ing ngisor iki yen perlu:

.navbar-brandkanggo perusahaan, produk, utawa jeneng proyek sampeyan.
.navbar-navkanggo pandhu arah kanthi dhuwur lan entheng (kalebu dhukungan kanggo dropdown).
.navbar-togglerkanggo digunakake karo plugin ambruk lan prilaku toggling navigasi liyane.
Utilitas fleksibel lan jarak kanggo kontrol lan tumindak apa wae.
.navbar-textkanggo nambah strings vertikal tengah teks.
.collapse.navbar-collapsekanggo klompok lan ndhelikake isi navbar dening breakpoint tiyang sepah.
Tambah opsional .navbar-scrollkanggo nyetel max-heightlan nggulung isi navbar sing ditambahi .

Punika conto kabeh sub-komponen sing kalebu ing navbar tema cahya responsif sing kanthi otomatis ambruk ing lgbreakpoint (gedhe).

html

<nav class="navbar navbar-expand-lg bg-light">
  <div class="container-fluid">
    <a class="navbar-brand" href="#">Navbar</a>
    <button class="navbar-toggler" type="button" data-bs-toggle="collapse" data-bs-target="#navbarSupportedContent" aria-controls="navbarSupportedContent" aria-expanded="false" aria-label="Toggle navigation">
      <span class="navbar-toggler-icon"></span>
    </button>
    <div class="collapse navbar-collapse" id="navbarSupportedContent">
      <ul class="navbar-nav me-auto mb-2 mb-lg-0">
        <li class="nav-item">
          <a class="nav-link active" aria-current="page" href="#">Home</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="#" role="button" data-bs-toggle="dropdown" aria-expanded="false">
            Dropdown
          </a>
          <ul class="dropdown-menu">
            <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">Disabled</a>
        </li>
      </ul>
      <form class="d-flex" role="search">
        <input class="form-control me-2" type="search" placeholder="Search" aria-label="Search">
        <button class="btn btn-outline-success" type="submit">Search</button>
      </form>
    </div>
  </div>
</nav>

Conto iki nggunakake latar mburi ( bg-light) lan spasi ( me-auto, mb-2, mb-lg-0, me-2) kelas sarana.

Merk

.navbar-brandBisa ditrapake kanggo umume unsur, nanging jangkar paling apik, amarga sawetara unsur mbutuhake kelas sarana utawa gaya khusus .

Teks

Tambah teks sampeyan ing unsur karo .navbar-brandkelas.

html

<!-- As a link -->
<nav class="navbar bg-light">
  <div class="container-fluid">
    <a class="navbar-brand" href="#">Navbar</a>
  </div>
</nav>

<!-- As a heading -->
<nav class="navbar bg-light">
  <div class="container-fluid">
    <span class="navbar-brand mb-0 h1">Navbar</span>
  </div>
</nav>

Gambar

Sampeyan bisa ngganti teks ing .navbar-brand.<img>

html

<nav class="navbar bg-light">
  <div class="container">
    <a class="navbar-brand" href="#">
      <img src="/docs/5.2/assets/brand/bootstrap-logo.svg" alt="Bootstrap" width="30" height="24">
    </a>
  </div>
</nav>

Gambar lan teks

Sampeyan uga bisa nggunakake sawetara keperluan tambahan kanggo nambah gambar lan teks ing wektu sing padha. Wigati tambahan .d-inline-blocklan .align-text-toping <img>.

html

<nav class="navbar bg-light">
  <div class="container-fluid">
    <a class="navbar-brand" href="#">
      <img src="/docs/5.2/assets/brand/bootstrap-logo.svg" alt="Logo" width="30" height="24" class="d-inline-block align-text-top">
      Bootstrap
    </a>
  </div>
</nav>

Nav

Tautan navigasi Navbar mbangun .navopsi kita karo kelas modifier dhewe lan mbutuhake kelas toggler kanggo gaya responsif sing tepat. Navigasi ing navbar uga bakal tuwuh kanggo ngenggoni spasi horisontal sabisa kanggo njaga isi navbar sampeyan kanthi aman.

Tambah .activekelas .nav-linkkanggo nuduhake kaca saiki.

Elinga yen sampeyan uga kudu nambah aria-currentatribut ing aktif .nav-link.

html

<nav class="navbar navbar-expand-lg bg-light">
  <div class="container-fluid">
    <a class="navbar-brand" href="#">Navbar</a>
    <button class="navbar-toggler" type="button" data-bs-toggle="collapse" data-bs-target="#navbarNav" aria-controls="navbarNav" aria-expanded="false" aria-label="Toggle navigation">
      <span class="navbar-toggler-icon"></span>
    </button>
    <div class="collapse navbar-collapse" id="navbarNav">
      <ul class="navbar-nav">
        <li class="nav-item">
          <a class="nav-link active" aria-current="page" href="#">Home</a>
        </li>
        <li class="nav-item">
          <a class="nav-link" href="#">Features</a>
        </li>
        <li class="nav-item">
          <a class="nav-link" href="#">Pricing</a>
        </li>
        <li class="nav-item">
          <a class="nav-link disabled">Disabled</a>
        </li>
      </ul>
    </div>
  </div>
</nav>

Lan amarga kita nggunakake kelas kanggo navs kita, sampeyan bisa supaya pendekatan adhedhasar dhaftar tanggung yen seneng.

html

<nav class="navbar navbar-expand-lg bg-light">
  <div class="container-fluid">
    <a class="navbar-brand" href="#">Navbar</a>
    <button class="navbar-toggler" type="button" data-bs-toggle="collapse" data-bs-target="#navbarNavAltMarkup" aria-controls="navbarNavAltMarkup" aria-expanded="false" aria-label="Toggle navigation">
      <span class="navbar-toggler-icon"></span>
    </button>
    <div class="collapse navbar-collapse" id="navbarNavAltMarkup">
      <div class="navbar-nav">
        <a class="nav-link active" aria-current="page" href="#">Home</a>
        <a class="nav-link" href="#">Features</a>
        <a class="nav-link" href="#">Pricing</a>
        <a class="nav-link disabled">Disabled</a>
      </div>
    </div>
  </div>
</nav>

Sampeyan uga bisa nggunakake dropdown ing navbar. Menu gulung mudhun mbutuhake unsur bungkus kanggo posisi, dadi manawa sampeyan nggunakake unsur sing kapisah lan nested kanggo .nav-itemlan .nav-linkkaya ing ngisor iki.

html

<nav class="navbar navbar-expand-lg bg-light">
  <div class="container-fluid">
    <a class="navbar-brand" href="#">Navbar</a>
    <button class="navbar-toggler" type="button" data-bs-toggle="collapse" data-bs-target="#navbarNavDropdown" aria-controls="navbarNavDropdown" aria-expanded="false" aria-label="Toggle navigation">
      <span class="navbar-toggler-icon"></span>
    </button>
    <div class="collapse navbar-collapse" id="navbarNavDropdown">
      <ul class="navbar-nav">
        <li class="nav-item">
          <a class="nav-link active" aria-current="page" href="#">Home</a>
        </li>
        <li class="nav-item">
          <a class="nav-link" href="#">Features</a>
        </li>
        <li class="nav-item">
          <a class="nav-link" href="#">Pricing</a>
        </li>
        <li class="nav-item dropdown">
          <a class="nav-link dropdown-toggle" href="#" role="button" data-bs-toggle="dropdown" aria-expanded="false">
            Dropdown link
          </a>
          <ul class="dropdown-menu">
            <li><a class="dropdown-item" href="#">Action</a></li>
            <li><a class="dropdown-item" href="#">Another action</a></li>
            <li><a class="dropdown-item" href="#">Something else here</a></li>
          </ul>
        </li>
      </ul>
    </div>
  </div>
</nav>

Formulir

Selehake macem-macem kontrol formulir lan komponen ing navbar:

html

<nav class="navbar bg-light">
  <div class="container-fluid">
    <form class="d-flex" role="search">
      <input class="form-control me-2" type="search" placeholder="Search" aria-label="Search">
      <button class="btn btn-outline-success" type="submit">Search</button>
    </form>
  </div>
</nav>

Elemen anak langsung .navbarnggunakake tata letak fleksibel lan bakal dadi standar justify-content: space-between. Gunakake utilitas fleksibel tambahan yen perlu kanggo nyetel prilaku iki.

html

<nav class="navbar bg-light">
  <div class="container-fluid">
    <a class="navbar-brand">Navbar</a>
    <form class="d-flex" role="search">
      <input class="form-control me-2" type="search" placeholder="Search" aria-label="Search">
      <button class="btn btn-outline-success" type="submit">Search</button>
    </form>
  </div>
</nav>

Grup input uga bisa digunakake. Yen navbar iku wangun kabeh, utawa biasane wangun, sampeyan bisa nggunakake <form>unsur minangka wadhah lan nyimpen sawetara HTML.

html

<nav class="navbar bg-light">
  <form class="container-fluid">
    <div class="input-group">
      <span class="input-group-text" id="basic-addon1">@</span>
      <input type="text" class="form-control" placeholder="Username" aria-label="Username" aria-describedby="basic-addon1">
    </div>
  </form>
</nav>

Macem-macem tombol didhukung minangka bagéan saka formulir navbar iki uga. Iki uga minangka pangeling sing apik yen utilitas alignment vertikal bisa digunakake kanggo nyelarasake unsur ukuran sing beda.

html

<nav class="navbar bg-light">
  <form class="container-fluid justify-content-start">
    <button class="btn btn-outline-success me-2" type="button">Main button</button>
    <button class="btn btn-sm btn-outline-secondary" type="button">Smaller button</button>
  </form>
</nav>

Teks

Navbar bisa ngemot potongan teks kanthi bantuan .navbar-text. Kelas iki nyetel alignment vertikal lan spasi horisontal kanggo strings teks.

html

<nav class="navbar bg-light">
  <div class="container-fluid">
    <span class="navbar-text">
      Navbar text with an inline element
    </span>
  </div>
</nav>

Nyampur lan cocog karo komponen lan keperluan liyane yen perlu.

html

<nav class="navbar navbar-expand-lg bg-light">
  <div class="container-fluid">
    <a class="navbar-brand" href="#">Navbar w/ text</a>
    <button class="navbar-toggler" type="button" data-bs-toggle="collapse" data-bs-target="#navbarText" aria-controls="navbarText" aria-expanded="false" aria-label="Toggle navigation">
      <span class="navbar-toggler-icon"></span>
    </button>
    <div class="collapse navbar-collapse" id="navbarText">
      <ul class="navbar-nav me-auto mb-2 mb-lg-0">
        <li class="nav-item">
          <a class="nav-link active" aria-current="page" href="#">Home</a>
        </li>
        <li class="nav-item">
          <a class="nav-link" href="#">Features</a>
        </li>
        <li class="nav-item">
          <a class="nav-link" href="#">Pricing</a>
        </li>
      </ul>
      <span class="navbar-text">
        Navbar text with an inline element
      </span>
    </div>
  </div>
</nav>

Skema warna

Anyar ing v5.2.0: Tema Navbar saiki didhukung dening variabel CSS lan .navbar-lightwis ora digunakake. Variabel CSS ditrapake kanggo .navbar, defaulting kanggo katon "cahya", lan bisa diganti karo .navbar-dark.

Tema Navbar luwih gampang tinimbang sadurunge amarga kombinasi Bootstrap saka variabel Sass lan CSS. Default iku "navbar cahya" kita kanggo nggunakake werna latar mburi cahya, nanging sampeyan uga bisa aplikasi .navbar-darkkanggo werna latar mburi peteng. Banjur, setel karo .bg-*keperluan.

<nav class="navbar navbar-dark bg-dark">
  <!-- Navbar content -->
</nav>

<nav class="navbar navbar-dark bg-primary">
  <!-- Navbar content -->
</nav>

<nav class="navbar" style="background-color: #e3f2fd;">
  <!-- Navbar content -->
</nav>

Wadhah

Sanajan ora dibutuhake, sampeyan bisa mbungkus navbar ing .containertengah-tengah ing sawijining kaca–sanajan elinga yen wadhah njero isih dibutuhake. Utawa sampeyan bisa nambah wadhah nang .navbarkanggo mung tengah isi navbar ndhuwur tetep utawa statis .

html

<div class="container">
  <nav class="navbar navbar-expand-lg bg-light">
    <div class="container-fluid">
      <a class="navbar-brand" href="#">Navbar</a>
    </div>
  </nav>
</div>

Gunakake sembarang wadhah responsif kanggo ngganti ambane isi ing navbar sampeyan diwenehi.

html

<nav class="navbar navbar-expand-lg bg-light">
  <div class="container-md">
    <a class="navbar-brand" href="#">Navbar</a>
  </div>
</nav>

Panggonan

Gunakake utilitas posisi kita kanggo nyelehake navbar ing posisi non-statis. Pilih saka tetep menyang ndhuwur, tetep ing ngisor, nempel ing ndhuwur (gulung karo kaca nganti tekan ndhuwur, banjur tetep ana), utawa nempel ing ngisor (gulung karo kaca nganti tekan ngisor, banjur tetep ana).

Navbar tetep nggunakake position: fixed, tegese lagi ditarik saka aliran normal DOM lan mbutuhake CSS khusus (contone, padding-toping <body>) kanggo nyegah tumpang tindih karo unsur liyane.

html

<nav class="navbar bg-light">
  <div class="container-fluid">
    <a class="navbar-brand" href="#">Default</a>
  </div>
</nav>

html

<nav class="navbar fixed-top bg-light">
  <div class="container-fluid">
    <a class="navbar-brand" href="#">Fixed top</a>
  </div>
</nav>

html

<nav class="navbar fixed-bottom bg-light">
  <div class="container-fluid">
    <a class="navbar-brand" href="#">Fixed bottom</a>
  </div>
</nav>

html

<nav class="navbar sticky-top bg-light">
  <div class="container-fluid">
    <a class="navbar-brand" href="#">Sticky top</a>
  </div>
</nav>

html

<nav class="navbar sticky-bottom bg-light">
  <div class="container-fluid">
    <a class="navbar-brand" href="#">Sticky bottom</a>
  </div>
</nav>

Nggulung

Tambah .navbar-nav-scrollmenyang .navbar-nav(utawa sub-komponen navbar liyane) kanggo ngaktifake nggulung vertikal ing isi toggleable saka navbar ambruk. Kanthi gawan, gulung munggah ing 75vh(utawa 75% saka dhuwur viewport), nanging sampeyan bisa ngganti karo properti adat CSS lokal --bs-navbar-heightutawa gaya adat. Ing viewport luwih gedhe nalika navbar ditambahi, isi bakal katon kaya ing navbar standar.

Wigati dimangerteni menawa prilaku iki ana kemungkinan overflowcacat - nalika nyetel overflow-y: auto(dibutuhake kanggo nggulung konten ing kene), overflow-xpadha karo auto, sing bakal ngethok sawetara konten horisontal.

Punika conto navbar nggunakake .navbar-nav-scrollkaro style="--bs-scroll-height: 100px;", karo sawetara keperluan margin ekstra kanggo spasi paling luweh.

html

<nav class="navbar navbar-expand-lg bg-light">
  <div class="container-fluid">
    <a class="navbar-brand" href="#">Navbar scroll</a>
    <button class="navbar-toggler" type="button" data-bs-toggle="collapse" data-bs-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 me-auto my-2 my-lg-0 navbar-nav-scroll" style="--bs-scroll-height: 100px;">
        <li class="nav-item">
          <a class="nav-link active" aria-current="page" href="#">Home</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="#" role="button" data-bs-toggle="dropdown" aria-expanded="false">
            Link
          </a>
          <ul class="dropdown-menu">
            <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">Link</a>
        </li>
      </ul>
      <form class="d-flex" role="search">
        <input class="form-control me-2" type="search" placeholder="Search" aria-label="Search">
        <button class="btn btn-outline-success" type="submit">Search</button>
      </form>
    </div>
  </div>
</nav>

Tumindak responsif

Navbars bisa nggunakake .navbar-toggler, .navbar-collapse, lan .navbar-expand{-sm|-md|-lg|-xl|-xxl}kelas kanggo nemtokake nalika isi sing ambruk konco tombol. Ing kombinasi karo keperluan liyane, sampeyan bisa kanthi gampang milih nalika nuduhake utawa ndhelikake unsur tartamtu.

Kanggo navbar sing ora tau ambruk, nambah .navbar-expandkelas ing navbar. Kanggo navbar sing tansah ambruk, ora nambah .navbar-expandkelas sembarang.

Toggler

Toggler Navbar didadekake siji kiwa minangka standar, nanging yen padha ngetutake unsur sedulur kaya a .navbar-brand, bakal kanthi otomatis didadekake siji ing sisih tengen. Mbalikake markup sampeyan bakal mbalikke panggonan toggler. Ing ngisor iki conto gaya toggle sing beda.

Kanthi ora .navbar-brandditampilake ing breakpoint paling cilik:

html

<nav class="navbar navbar-expand-lg bg-light">
  <div class="container-fluid">
    <button class="navbar-toggler" type="button" data-bs-toggle="collapse" data-bs-target="#navbarTogglerDemo01" aria-controls="navbarTogglerDemo01" aria-expanded="false" aria-label="Toggle navigation">
      <span class="navbar-toggler-icon"></span>
    </button>
    <div class="collapse navbar-collapse" id="navbarTogglerDemo01">
      <a class="navbar-brand" href="#">Hidden brand</a>
      <ul class="navbar-nav me-auto mb-2 mb-lg-0">
        <li class="nav-item">
          <a class="nav-link active" aria-current="page" href="#">Home</a>
        </li>
        <li class="nav-item">
          <a class="nav-link" href="#">Link</a>
        </li>
        <li class="nav-item">
          <a class="nav-link disabled">Disabled</a>
        </li>
      </ul>
      <form class="d-flex" role="search">
        <input class="form-control me-2" type="search" placeholder="Search" aria-label="Search">
        <button class="btn btn-outline-success" type="submit">Search</button>
      </form>
    </div>
  </div>
</nav>

Kanthi jeneng merek ditampilake ing sisih kiwa lan toggler ing sisih tengen:

html

<nav class="navbar navbar-expand-lg bg-light">
  <div class="container-fluid">
    <a class="navbar-brand" href="#">Navbar</a>
    <button class="navbar-toggler" type="button" data-bs-toggle="collapse" data-bs-target="#navbarTogglerDemo02" aria-controls="navbarTogglerDemo02" aria-expanded="false" aria-label="Toggle navigation">
      <span class="navbar-toggler-icon"></span>
    </button>
    <div class="collapse navbar-collapse" id="navbarTogglerDemo02">
      <ul class="navbar-nav me-auto mb-2 mb-lg-0">
        <li class="nav-item">
          <a class="nav-link active" aria-current="page" href="#">Home</a>
        </li>
        <li class="nav-item">
          <a class="nav-link" href="#">Link</a>
        </li>
        <li class="nav-item">
          <a class="nav-link disabled">Disabled</a>
        </li>
      </ul>
      <form class="d-flex" role="search">
        <input class="form-control me-2" type="search" placeholder="Search" aria-label="Search">
        <button class="btn btn-outline-success" type="submit">Search</button>
      </form>
    </div>
  </div>
</nav>

Kanthi toggler ing sisih kiwa lan jeneng merek ing sisih tengen:

html

<nav class="navbar navbar-expand-lg bg-light">
  <div class="container-fluid">
    <button class="navbar-toggler" type="button" data-bs-toggle="collapse" data-bs-target="#navbarTogglerDemo03" aria-controls="navbarTogglerDemo03" aria-expanded="false" aria-label="Toggle navigation">
      <span class="navbar-toggler-icon"></span>
    </button>
    <a class="navbar-brand" href="#">Navbar</a>
    <div class="collapse navbar-collapse" id="navbarTogglerDemo03">
      <ul class="navbar-nav me-auto mb-2 mb-lg-0">
        <li class="nav-item">
          <a class="nav-link active" aria-current="page" href="#">Home</a>
        </li>
        <li class="nav-item">
          <a class="nav-link" href="#">Link</a>
        </li>
        <li class="nav-item">
          <a class="nav-link disabled">Disabled</a>
        </li>
      </ul>
      <form class="d-flex" role="search">
        <input class="form-control me-2" type="search" placeholder="Search" aria-label="Search">
        <button class="btn btn-outline-success" type="submit">Search</button>
      </form>
    </div>
  </div>
</nav>

Isi njaba

Kadhangkala sampeyan pengin nggunakake plugin ambruk kanggo micu unsur wadhah kanggo konten sing sacara struktural dumunung ing njaba .navbar. Amarga kita plugin dianggo ing idlan data-bs-targetcocog, sing gampang rampung!

Isi ambruk

Bisa diganti liwat merek navbar.

html

<div class="collapse" id="navbarToggleExternalContent">
  <div class="bg-dark p-4">
    <h5 class="text-white h4">Collapsed content</h5>
    <span class="text-muted">Toggleable via the navbar brand.</span>
  </div>
</div>
<nav class="navbar navbar-dark bg-dark">
  <div class="container-fluid">
    <button class="navbar-toggler" type="button" data-bs-toggle="collapse" data-bs-target="#navbarToggleExternalContent" aria-controls="navbarToggleExternalContent" aria-expanded="false" aria-label="Toggle navigation">
      <span class="navbar-toggler-icon"></span>
    </button>
  </div>
</nav>

Nalika sampeyan nindakake iki, disaranake kalebu JavaScript tambahan kanggo mindhah fokus programmatically kanggo wadhah nalika dibukak. Yen ora, pangguna keyboard lan pangguna teknologi pitulung bakal angel nemokake konten sing mentas dicethakake - utamane yen wadhah sing dibukak sadurunge toggler ing struktur dokumen. Disaranake uga priksa manawa toggler duwe aria-controlsatribut, ngarahake menyang idwadhah konten. Ing teori, iki ngidini pangguna teknologi asisten langsung mlumpat saka toggler menyang wadhah sing dikontrol-nanging dhukungan kanggo iki saiki rada kurang.

Offcanvas

Owahi navbar sing ngembang lan ambruk dadi laci offcanvas kanthi komponen offcanvas . Kita ngluwihi gaya standar offcanvas lan nggunakake .navbar-expand-*kelas kita kanggo nggawe sidebar navigasi sing dinamis lan fleksibel.

Ing conto ing ngisor iki, kanggo nggawe navbar offcanvas sing tansah ambruk ing kabeh breakpoints, ngilangi .navbar-expand-*kelas kabeh.

html

<nav class="navbar bg-light fixed-top">
  <div class="container-fluid">
    <a class="navbar-brand" href="#">Offcanvas navbar</a>
    <button class="navbar-toggler" type="button" data-bs-toggle="offcanvas" data-bs-target="#offcanvasNavbar" aria-controls="offcanvasNavbar">
      <span class="navbar-toggler-icon"></span>
    </button>
    <div class="offcanvas offcanvas-end" tabindex="-1" id="offcanvasNavbar" aria-labelledby="offcanvasNavbarLabel">
      <div class="offcanvas-header">
        <h5 class="offcanvas-title" id="offcanvasNavbarLabel">Offcanvas</h5>
        <button type="button" class="btn-close" data-bs-dismiss="offcanvas" aria-label="Close"></button>
      </div>
      <div class="offcanvas-body">
        <ul class="navbar-nav justify-content-end flex-grow-1 pe-3">
          <li class="nav-item">
            <a class="nav-link active" aria-current="page" href="#">Home</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="#" role="button" data-bs-toggle="dropdown" aria-expanded="false">
              Dropdown
            </a>
            <ul class="dropdown-menu">
              <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>
        </ul>
        <form class="d-flex" role="search">
          <input class="form-control me-2" type="search" placeholder="Search" aria-label="Search">
          <button class="btn btn-outline-success" type="submit">Search</button>
        </form>
      </div>
    </div>
  </div>
</nav>

Kanggo nggawe navbar offcanvas sing nggedhekake navbar normal ing breakpoint tartamtu kaya lg, gunakake .navbar-expand-lg.

<nav class="navbar navbar-expand-lg bg-light fixed-top">
  <a class="navbar-brand" href="#">Offcanvas navbar</a>
  <button class="navbar-toggler" type="button" data-bs-toggle="offcanvas" data-bs-target="#navbarOffcanvasLg" aria-controls="navbarOffcanvasLg">
    <span class="navbar-toggler-icon"></span>
  </button>
  <div class="offcanvas offcanvas-end" tabindex="-1" id="navbarOffcanvasLg" aria-labelledby="navbarOffcanvasLgLabel">
    ...
  </div>
</nav>

Nalika nggunakake offcanvas ing navbar peteng, elinga yen sampeyan kudu duwe latar mburi peteng ing isi offcanvas supaya teks ora bisa dibaca. Ing conto ing ngisor iki, kita nambah .navbar-darklan .bg-darkmenyang .navbar, .text-bg-darkmenyang .offcanvas, .dropdown-menu-darkmenyang .dropdown-menu, lan .btn-close-whitekanggo .btn-closekanggo gaya sing tepat karo offcanvas peteng.

html

<nav class="navbar navbar-dark bg-dark fixed-top">
  <div class="container-fluid">
    <a class="navbar-brand" href="#">Offcanvas dark navbar</a>
    <button class="navbar-toggler" type="button" data-bs-toggle="offcanvas" data-bs-target="#offcanvasDarkNavbar" aria-controls="offcanvasDarkNavbar">
      <span class="navbar-toggler-icon"></span>
    </button>
    <div class="offcanvas offcanvas-end text-bg-dark" tabindex="-1" id="offcanvasDarkNavbar" aria-labelledby="offcanvasDarkNavbarLabel">
      <div class="offcanvas-header">
        <h5 class="offcanvas-title" id="offcanvasDarkNavbarLabel">Dark offcanvas</h5>
        <button type="button" class="btn-close btn-close-white" data-bs-dismiss="offcanvas" aria-label="Close"></button>
      </div>
      <div class="offcanvas-body">
        <ul class="navbar-nav justify-content-end flex-grow-1 pe-3">
          <li class="nav-item">
            <a class="nav-link active" aria-current="page" href="#">Home</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="#" role="button" data-bs-toggle="dropdown" aria-expanded="false">
              Dropdown
            </a>
            <ul class="dropdown-menu dropdown-menu-dark">
              <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>
        </ul>
        <form class="d-flex" role="search">
          <input class="form-control me-2" type="search" placeholder="Search" aria-label="Search">
          <button class="btn btn-success" type="submit">Search</button>
        </form>
      </div>
    </div>
  </div>
</nav>

CSS

Variabel

Ditambahake ing v5.2.0

Minangka bagéan saka pendekatan variabel CSS Bootstrap sing berkembang, navbar saiki nggunakake variabel CSS lokal .navbarkanggo kustomisasi wektu nyata sing ditingkatake. Nilai kanggo variabel CSS disetel liwat Sass, supaya kustomisasi Sass isih didhukung.

  --#{$prefix}navbar-padding-x: #{if($navbar-padding-x == null, 0, $navbar-padding-x)};
  --#{$prefix}navbar-padding-y: #{$navbar-padding-y};
  --#{$prefix}navbar-color: #{$navbar-light-color};
  --#{$prefix}navbar-hover-color: #{$navbar-light-hover-color};
  --#{$prefix}navbar-disabled-color: #{$navbar-light-disabled-color};
  --#{$prefix}navbar-active-color: #{$navbar-light-active-color};
  --#{$prefix}navbar-brand-padding-y: #{$navbar-brand-padding-y};
  --#{$prefix}navbar-brand-margin-end: #{$navbar-brand-margin-end};
  --#{$prefix}navbar-brand-font-size: #{$navbar-brand-font-size};
  --#{$prefix}navbar-brand-color: #{$navbar-light-brand-color};
  --#{$prefix}navbar-brand-hover-color: #{$navbar-light-brand-hover-color};
  --#{$prefix}navbar-nav-link-padding-x: #{$navbar-nav-link-padding-x};
  --#{$prefix}navbar-toggler-padding-y: #{$navbar-toggler-padding-y};
  --#{$prefix}navbar-toggler-padding-x: #{$navbar-toggler-padding-x};
  --#{$prefix}navbar-toggler-font-size: #{$navbar-toggler-font-size};
  --#{$prefix}navbar-toggler-icon-bg: #{escape-svg($navbar-light-toggler-icon-bg)};
  --#{$prefix}navbar-toggler-border-color: #{$navbar-light-toggler-border-color};
  --#{$prefix}navbar-toggler-border-radius: #{$navbar-toggler-border-radius};
  --#{$prefix}navbar-toggler-focus-width: #{$navbar-toggler-focus-width};
  --#{$prefix}navbar-toggler-transition: #{$navbar-toggler-transition};

Sawetara variabel CSS tambahan uga ana ing .navbar-nav:

  --#{$prefix}nav-link-padding-x: 0;
  --#{$prefix}nav-link-padding-y: #{$nav-link-padding-y};
  @include rfs($nav-link-font-size, --#{$prefix}nav-link-font-size);
  --#{$prefix}nav-link-font-weight: #{$nav-link-font-weight};
  --#{$prefix}nav-link-color: var(--#{$prefix}navbar-color);
  --#{$prefix}nav-link-hover-color: var(--#{$prefix}navbar-hover-color);
  --#{$prefix}nav-link-disabled-color: var(--#{$prefix}navbar-disabled-color);

Kustomisasi liwat variabel CSS bisa dideleng ing .navbar-darkkelas ing ngendi kita ngilangi nilai tartamtu tanpa nambahake pamilih CSS duplikat.

  --#{$prefix}navbar-color: #{$navbar-dark-color};
  --#{$prefix}navbar-hover-color: #{$navbar-dark-hover-color};
  --#{$prefix}navbar-disabled-color: #{$navbar-dark-disabled-color};
  --#{$prefix}navbar-active-color: #{$navbar-dark-active-color};
  --#{$prefix}navbar-brand-color: #{$navbar-dark-brand-color};
  --#{$prefix}navbar-brand-hover-color: #{$navbar-dark-brand-hover-color};
  --#{$prefix}navbar-toggler-border-color: #{$navbar-dark-toggler-border-color};
  --#{$prefix}navbar-toggler-icon-bg: #{escape-svg($navbar-dark-toggler-icon-bg)};

Variabel Sass

Variabel kanggo kabeh navbar:

$navbar-padding-y:                  $spacer * .5;
$navbar-padding-x:                  null;

$navbar-nav-link-padding-x:         .5rem;

$navbar-brand-font-size:            $font-size-lg;
// Compute the navbar-brand padding-y so the navbar-brand will have the same height as navbar-text and nav-link
$nav-link-height:                   $font-size-base * $line-height-base + $nav-link-padding-y * 2;
$navbar-brand-height:               $navbar-brand-font-size * $line-height-base;
$navbar-brand-padding-y:            ($nav-link-height - $navbar-brand-height) * .5;
$navbar-brand-margin-end:           1rem;

$navbar-toggler-padding-y:          .25rem;
$navbar-toggler-padding-x:          .75rem;
$navbar-toggler-font-size:          $font-size-lg;
$navbar-toggler-border-radius:      $btn-border-radius;
$navbar-toggler-focus-width:        $btn-focus-width;
$navbar-toggler-transition:         box-shadow .15s ease-in-out;

$navbar-light-color:                rgba($black, .55);
$navbar-light-hover-color:          rgba($black, .7);
$navbar-light-active-color:         rgba($black, .9);
$navbar-light-disabled-color:       rgba($black, .3);
$navbar-light-toggler-icon-bg:      url("data:image/svg+xml,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'><path stroke='#{$navbar-light-color}' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/></svg>");
$navbar-light-toggler-border-color: rgba($black, .1);
$navbar-light-brand-color:          $navbar-light-active-color;
$navbar-light-brand-hover-color:    $navbar-light-active-color;

Variabel kanggo navbar peteng :

$navbar-dark-color:                 rgba($white, .55);
$navbar-dark-hover-color:           rgba($white, .75);
$navbar-dark-active-color:          $white;
$navbar-dark-disabled-color:        rgba($white, .25);
$navbar-dark-toggler-icon-bg:       url("data:image/svg+xml,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'><path stroke='#{$navbar-dark-color}' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/></svg>");
$navbar-dark-toggler-border-color:  rgba($white, .1);
$navbar-dark-brand-color:           $navbar-dark-active-color;
$navbar-dark-brand-hover-color:     $navbar-dark-active-color;

Sass loop

Navbar responsif nggedhekake / kelas ambruk (contone, .navbar-expand-lg) digabungake karo $breakpointspeta lan kui liwat daur ulang ing scss/_navbar.scss.

// Generate series of `.navbar-expand-*` responsive classes for configuring
// where your navbar collapses.
.navbar-expand {
  @each $breakpoint in map-keys($grid-breakpoints) {
    $next: breakpoint-next($breakpoint, $grid-breakpoints);
    $infix: breakpoint-infix($next, $grid-breakpoints);

    // stylelint-disable-next-line scss/selector-no-union-class-name
    &#{$infix} {
      @include media-breakpoint-up($next) {
        flex-wrap: nowrap;
        justify-content: flex-start;

        .navbar-nav {
          flex-direction: row;

          .dropdown-menu {
            position: absolute;
          }

          .nav-link {
            padding-right: var(--#{$prefix}navbar-nav-link-padding-x);
            padding-left: var(--#{$prefix}navbar-nav-link-padding-x);
          }
        }

        .navbar-nav-scroll {
          overflow: visible;
        }

        .navbar-collapse {
          display: flex !important; // stylelint-disable-line declaration-no-important
          flex-basis: auto;
        }

        .navbar-toggler {
          display: none;
        }

        .offcanvas {
          // stylelint-disable declaration-no-important
          position: static;
          z-index: auto;
          flex-grow: 1;
          width: auto !important;
          height: auto !important;
          visibility: visible !important;
          background-color: transparent !important;
          border: 0 !important;
          transform: none !important;
          @include box-shadow(none);
          @include transition(none);
          // stylelint-enable declaration-no-important

          .offcanvas-header {
            display: none;
          }

          .offcanvas-body {
            display: flex;
            flex-grow: 0;
            padding: 0;
            overflow-y: visible;
          }
        }
      }
    }
  }
}