in English

Navbar

Sgrìobhainnean agus eisimpleirean airson bann-cinn seòlaidh cumhachdach, freagairteach Bootstrap, an navbar. A’ toirt a-steach taic airson branndadh, seòladh, agus barrachd, a’ toirt a-steach taic don plugan tuiteam againn.

Air an duilleig seo

Mar a tha e ag obair

Seo na dh’ fheumas tu a bhith eòlach mus tòisich thu leis a’ bhàr nav:

Feumaidh navbars còmhdach .navbarle .navbar-expand{-sm|-md|-lg|-xl|-xxl}airson tuiteam freagairteach agus clasaichean sgeama dathan .
Tha navbars agus an susbaint siùbhlach gu bunaiteach. Atharraich an soitheach gus an leud còmhnard aca a chuingealachadh ann an diofar dhòighean.
Cleachd na clasaichean farsaingeachd agus goireas sùbailte againn airson smachd a chumail air farsaingeachd agus co-thaobhadh taobh a-staigh na bàraichean seòlaidh.
Tha navbars freagairteach gu bunaiteach, ach is urrainn dhut an atharrachadh gu furasta gus sin atharrachadh. Tha giùlan ciallach an urra ris a’ plugan Collapse JavaScript againn.
Dèan cinnteach gum bi ruigsinneachd ann le bhith a’ cleachdadh <nav>eileamaid no, ma tha thu a’ cleachdadh eileamaid nas gnèitheach leithid <div>, cuir a ris role="navigation"a h-uile bàr seòlaidh gus a chomharrachadh gu soilleir mar sgìre shònraichte airson luchd-cleachdaidh teicneòlasan cuideachaidh.
Sònraich an rud làithreach le bhith a’ cleachdadh aria-current="page"airson na duilleige làithreach no aria-current="true"airson an rud làithreach ann an seata.
Ùr ann an v5.2.0: Faodar navbars a bhith air an cuspair le caochladairean CSS a tha air an cuairteachadh don .navbarchlas bhunaiteach. .navbar-lightair a bhith gun mholadh agus .navbar-darkchaidh ath-sgrìobhadh gus a dhol thairis air caochladairean CSS an àite stoidhlichean a bharrachd a chur ris.

Tha buaidh beothalachd na co-phàirt seo an urra ri prefers-reduced-motionceist nam meadhanan. Faic an earrann gluasad lùghdaichte de na sgrìobhainnean ruigsinneachd againn .

Susbaint le taic

Bidh Navbars a’ tighinn le taic togte airson dòrlach de fo-phàirtean. Tagh bho na leanas mar a dh 'fheumar:

.navbar-brandairson do chompanaidh, toradh no ainm pròiseict.
.navbar-navairson seòladh làn-àirde agus aotrom (a’ toirt a-steach taic airson dropdowns).
.navbar-togglerairson a chleachdadh leis a’ plugan tuiteam againn agus giùlan toggling seòlaidh eile.
Goireasan sùbailte agus farsaingeachd airson smachdan agus gnìomhan cruth sam bith.
.navbar-textairson sreathan teacsa le fòcas dìreach a chur ris.
.collapse.navbar-collapseairson a bhith a’ cruinneachadh agus a’ falach susbaint navbar le briseadh pàrant.
Cuir roghainn a-steach .navbar-scrollgus susbaint bàr seòlaidh leudaichte a shuidheachadh max-heightagus scrollaich .

Seo eisimpleir de na fo-phàirtean gu lèir a tha air an toirt a-steach do bhàr seòlaidh freagairteach le cuspair solais a thuiteas gu fèin-ghluasadach aig an lgàite brisidh (mòr).

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>

Bidh an eisimpleir seo a’ cleachdadh cùl -fhiosrachadh ( bg-light) agus farsaingeachd ( me-auto, mb-2, mb-lg-0, me-2) clasaichean goireis.

Brand

Faodar .navbar-brandan cur an sàs anns a’ mhòr-chuid de na h-eileamaidean, ach tha acair ag obair as fheàrr, oir is dòcha gu feum cuid de na h-eileamaidean clasaichean goireis no stoidhlichean àbhaisteach.

Teacs

Cuir do theacsa taobh a-staigh eileamaid leis a’ .navbar-brandchlas.

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>

Dealbh

Faodaidh tu teacsa a chuir na àite .navbar-brandle faidhle <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>

Ìomhaigh agus teacsa

Faodaidh tu cuideachd cuid de ghoireasan a bharrachd a chleachdadh gus ìomhaigh agus teacsa a chuir ris aig an aon àm. Thoir fa-near cur-ris .d-inline-blockagus .align-text-topair an <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

Bidh ceanglaichean seòlaidh Navbar a’ togail air na .navroghainnean againn leis a’ chlas atharrachaidh aca fhèin agus feumaidh iad clasaichean toggler a chleachdadh airson stoidhle freagairteach ceart. Bidh seòladh ann am bàraichean seòlaidh cuideachd a’ fàs gus a bhith a’ gabhail thairis na h-uimhir de dh’ àite còmhnard ’s as urrainn gus susbaint do bhàr-seòlaidh a chumail ceangailte gu tèarainte.

Cuir ris a’ .activechlas .nav-linkgus an duilleag làithreach a chomharrachadh.

Thoir an aire gum bu chòir dhut cuideachd am aria-currentfeart a chuir ris an fhaidhle gnìomhach .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>

Agus leis gu bheil sinn a’ cleachdadh chlasaichean airson ar seòladairean, faodaidh tu an dòigh-obrach stèidhichte air liosta a sheachnadh gu tur ma thogras tu.

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>

Faodaidh tu cuideachd dropdowns a chleachdadh anns a’ bhàr seòlaidh agad. Feumaidh clàir tuiteam-sìos eileamaid còmhdaich airson a shuidheachadh, mar sin bi cinnteach gun cleachd thu eileamaidean fa leth agus neadachaidh airson .nav-itemagus .nav-linkmar a chithear gu h-ìosal.

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>

Foirmean

Cuir diofar smachdan cruth agus co-phàirtean taobh a-staigh bàr nav:

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>

Bidh clann sa bhad a’ .navbarcleachdadh cruth sùbailte agus bidh iad bunaiteach gu justify-content: space-between. Cleachd goireasan sùbailte a bharrachd mar a dh’ fheumar gus an giùlan seo atharrachadh.

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>

Bidh buidhnean cuir a-steach ag obair cuideachd. Mas e foirm slàn a th’ anns a’ bhàr seòlaidh agad, no foirm sa mhòr-chuid, faodaidh tu an <form>eileamaid a chleachdadh mar shoitheach agus sàbhail beagan 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>

Tha grunn phutanan a’ faighinn taic mar phàirt de na foirmean navbar sin cuideachd. Tha seo cuideachd na dheagh chuimhneachan gum faodar goireasan co-thaobhadh dìreach a chleachdadh gus eileamaidean de dhiofar mheudan a cho-thaobhadh.

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>

Teacs

Faodaidh pìosan teacsa a bhith ann an Navbars le cuideachadh bho .navbar-text. Bidh an clas seo ag atharrachadh co-thaobhadh dìreach agus farsaingeachd chòmhnard airson sreathan teacsa.

html

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

Measgaich agus maids le co-phàirtean agus goireasan eile mar a dh’ fheumar.

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>

Sgeama dathan

Ùr ann an v5.2.0: Tha cuspair Navbar a-nis air a stiùireadh le caochladairean CSS agus .navbar-lightchan eil e air a mholadh. Bithear a’ cur caochladairean CSS an sàs ann an .navbar, a’ dol a-steach don choltas “aotrom”, agus faodar an toirt thairis le .navbar-dark.

Tha cuspairean Navbar nas fhasa na bha e a-riamh le taing dha cothlamadh Bootstrap de chaochladairean Sass agus CSS. Is e am “bàr-seòlaidh aotrom” an roghainn àbhaisteach againn airson a chleachdadh le dathan cùl-raoin aotrom, ach faodaidh tu cuideachd tagradh a dhèanamh .navbar-darkairson dathan cùl-raoin dorcha. An uairsin, gnàthaich le .bg-*goireasan.

<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>

Gabhadairean

Ged nach eil feum air, faodaidh tu bàr-seòlaidh a phasgadh ann an .containerduilleag gus a mheadhanachadh - ged a thoir an aire gu bheil feum air soitheach a-staigh fhathast. No faodaidh tu soitheach a chuir a-steach .navbardon ionad gus susbaint bàr-seòlaidh mullach stèidhichte no statach a-mhàin .

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>

Cleachd gin de na soithichean freagairteach gus atharrachadh dè cho farsaing ‘s a tha an susbaint anns a’ bhàr seòlaidh agad air a thaisbeanadh.

html

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

Suidheachadh

Cleachd na goireasan suidheachaidh againn gus navbars a chuir ann an suidheachaidhean neo-statach. Tagh bho stèidhichte gu mullach, suidhichte aig a ’bhonn, steigte chun mhullach (scrollaich leis an duilleag gus an ruig e am mullach, an uairsin fuirich ann), no steigte ris a’ bhonn (scrollaich leis an duilleag gus an ruig e am bonn, an uairsin fuirich ann).

Bidh navbars stèidhichte a’ cleachdadh position: fixed, a’ ciallachadh gu bheil iad air an tarraing bho shruth àbhaisteach an DOM agus is dòcha gu feum iad CSS àbhaisteach (me, padding-topair an <body>) gus casg a chuir air tar-tharraing le eileamaidean eile.

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>

Sgrolaich

Cuir .navbar-nav-scrollri .navbar-nav(no fo-phàirt navbar eile) gus scrollaidh dìreach a chomasachadh taobh a-staigh susbaint toggle ann am bàr-seòlaidh a thuit. Gu gnàthach, bidh scrollaidh a’ tòiseachadh aig 75vh(no 75% de dh’ àirde an t-seallaidh), ach faodaidh tu a dhol thairis air sin le seilbh àbhaisteach CSS ionadail --bs-navbar-heightno stoidhlichean àbhaisteach. Aig puirt-seallaidh nas motha nuair a thèid am bàr seòlaidh a leudachadh, nochdaidh susbaint mar a tha e ann am bàr seòlaidh bunaiteach.

Thoir an aire gu bheil an giùlan seo a’ tighinn le tarraing air ais a dh’ fhaodadh a bhith ann - nuair a tha overflowsuidheachadh overflow-y: auto(feumar an susbaint a sgrùdadh an seo), overflow-xco-ionann ri auto, a bheir bàrr air susbaint chòmhnard.

Seo eisimpleir navbar a’ cleachdadh .navbar-nav-scrollle style="--bs-scroll-height: 100px;", le cuid de ghoireasan iomaill a bharrachd airson am farsaingeachd as fheàrr.

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>

Giùlan freagairteach

Faodaidh Navbars .navbar-toggler, .navbar-collapse, agus .navbar-expand{-sm|-md|-lg|-xl|-xxl}clasaichean a chleachdadh gus faighinn a-mach cuin a thuiteas an susbaint aca air cùl putan. Còmhla ri goireasan eile, faodaidh tu gu furasta taghadh cuin a sheallas tu no a chuireas tu am falach eileamaidean sònraichte.

Airson navbars nach tuit gu bràth, cuir a’ .navbar-expandchlas air a’ bhàr nav. Airson navbars a bhios an-còmhnaidh a 'tuiteam, na cuir .navbar-expandclas sam bith ris.

Togbhail

Tha toglaichean Navbar air an co-thaobhadh ris an taobh chlì a ghnàth, ach ma leanas iad eileamaid sibling mar a .navbar-brand, bidh iad gu fèin-obrachail air an co-thaobhadh ris an fhìor làimh dheis. Ma chuireas tu do chomharradh air ais cuiridh sin cùl ri suidheachadh an toggler. Gu h-ìosal tha eisimpleirean de dhiofar stoidhlichean toggle.

Gun a bhith .navbar-brandair a shealltainn aig an ìre briseadh as lugha:

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>

Le ainm branda air an taobh chlì agus toggler air an làimh dheis:

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>

Le toggler air an taobh chlì agus ainm branda air an làimh dheis:

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>

Susbaint bhon taobh a-muigh

Aig amannan bidh thu airson am plugan tuiteam a chleachdadh gus eileamaid soithich a bhrosnachadh airson susbaint a tha gu structarail na shuidhe taobh a-muigh an fhaidhle .navbar. Leis gu bheil am plugan againn ag obair air idagus a’ data-bs-targetmaidseadh, tha sin furasta a dhèanamh!

Susbaint air a dhol sìos

Faodar a ghluasad tro bhrand 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>

Nuair a nì thu seo, tha sinn a’ moladh JavaScript a bharrachd a thoirt a-steach gus am fòcas a ghluasad gu prògramach chun ghobhar nuair a thèid fhosgladh. Rud eile, tha coltas ann gum bi ùine chruaidh aig luchd-cleachdaidh meur-chlàr agus luchd-cleachdaidh theicneòlasan cuideachaidh an t-susbaint ùr fhoillseachadh - gu sònraichte ma thig an soitheach a chaidh fhosgladh ron toggler ann an structar na sgrìobhainn. Tha sinn cuideachd a’ moladh dèanamh cinnteach gu bheil aria-controlsbuadhan aig an toggler, a’ comharrachadh meud an idt-soithich susbaint. Ann an teòiridh, leigidh seo le luchd-cleachdaidh teicneòlas cuideachaidh leum gu dìreach bhon toggler chun inneal a tha e a’ cumail smachd - ach tha taic airson seo gu math neo-chunbhalach an-dràsta.

Offcanvas

Atharraich am bàr seòlaidh agad a tha a’ leudachadh is a’ tuiteam gu drathair far canabhas leis a’ cho-phàirt offcanvas . Bidh sinn a’ leudachadh an dà chuid na stoidhlichean bunaiteach offcanvas agus a’ cleachdadh ar .navbar-expand-*clasaichean gus bàr-taoibh seòlaidh fiùghantach is sùbailte a chruthachadh.

Anns an eisimpleir gu h-ìosal, gus bàr-seòlaidh offcanvas a chruthachadh a bhios an-còmhnaidh air tuiteam thairis air a h-uile briseadh, fàg a-mach an .navbar-expand-*clas gu tur.

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>

Gus bàr-seòlaidh offcanvas a chruthachadh a leudaicheas gu bàr seòlaidh àbhaisteach aig àite brisidh sònraichte leithid lg, cleachd .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>

Nuair a bhios tu a’ cleachdadh offcanvas ann am bàr seòlaidh dorcha, thoir an aire gur dòcha gum feum thu cùl-raon dorcha air an t-susbaint far a’ chanabhas gus nach bi an teacsa so-leughaidh. Anns an eisimpleir gu h-ìosal, bidh sinn a 'cur ris .navbar-darkagus .bg-darkris an .navbar, .text-bg-darkris an .offcanvas, .dropdown-menu-darkgu .dropdown-menu, agus .btn-close-whiteairson .btn-closestoidhle ceart le canabhas dorcha.

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

Caochlaidhean

Air a chur ris ann an v5.2.0

Mar phàirt de dhòigh-obrach caochladairean CSS Bootstrap a tha ag atharrachadh, bidh navbars a-nis a’ cleachdadh caochladairean CSS ionadail air adhart .navbarairson gnàthachadh fìor-ùine leasaichte. Tha luachan airson caochladairean CSS air an suidheachadh tro Sass, agus mar sin tha gnàthachadh Sass fhathast a’ faighinn taic, cuideachd.

  --#{$prefix}navbar-padding-x: #{if($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};

Tha cuid de chaochladairean CSS a bharrachd an làthair cuideachd air .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);

Chithear gnàthachadh tro chaochladairean CSS air a’ .navbar-darkchlas far am bi sinn a’ dol thairis air luachan sònraichte gun a bhith a’ cur luchd-taghaidh CSS dùblaichte ris.

  --#{$prefix}navbar-color: #{$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)};

caochladairean Sass

Caochlaidhean airson a h-uile navbars:

$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;

Caochlaidhean airson a’ bhàr seòlaidh dorcha :

$navbar-dark-color:                 rgba($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;

lùb sass

Bithear a’ cur chlasaichean leudachaidh/tuiteam (me, .navbar-expand-lg) còmhla ris a’ $breakpointsmhapa agus air an gineadh tro lùb ann an 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;
          }
        }
      }
    }
  }
}