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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>

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!

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;
          }
        }
      }
    }
  }
}