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Salelá ba utilitaires oyo ya stenographie mpo na ko configurer noki position ya élément moko.

Mituya ya esika

Ba kelasi ya positionnement ya mbangu ezali, atako ezali ko répondre te.

<div class="position-static">...</div>
<div class="position-relative">...</div>
<div class="position-absolute">...</div>
<div class="position-fixed">...</div>
<div class="position-sticky">...</div>

Bongisá biloko oyo ezali na kati

Bongisa ba éléments facilement na ba utilitaires ya positionnement ya bord. Format na yango ezali {property}-{position}.

Epayi wapi biloko ezali moko ya:

  • toptop- mpo na position verticale
  • start- mpo na position horizontale left(na LTR) .
  • bottombottom- mpo na position verticale
  • end- mpo na position horizontale right(na LTR) .

Epayi wapi position ezali moko ya:

  • 0- mpo 0na position ya bord
  • 50- mpo 50%na position ya bord
  • 100- mpo 100%na position ya bord

(Okoki kobakisa ba valeurs ya position mingi na kobakisa ba entrées na $position-valuesvariable ya carte Sass.)

<div class="position-relative">
  <div class="position-absolute top-0 start-0"></div>
  <div class="position-absolute top-0 end-0"></div>
  <div class="position-absolute top-50 start-50"></div>
  <div class="position-absolute bottom-50 end-50"></div>
  <div class="position-absolute bottom-0 start-0"></div>
  <div class="position-absolute bottom-0 end-0"></div>
</div>

Ba éléments ya centre

En plus, okoki pe ko centrer ba éléments na classe ya utilitaire transformer .translate-middle.

Classe oyo e appliquer ba transformations translateX(-50%)mpe translateY(-50%)na élément oyo, en combinaison na ba utilitaires ya positionnement ya bord, e permettre yo o centrer absolument élément moko.

<div class="position-relative">
  <div class="position-absolute top-0 start-0 translate-middle"></div>
  <div class="position-absolute top-0 start-50 translate-middle"></div>
  <div class="position-absolute top-0 start-100 translate-middle"></div>
  <div class="position-absolute top-50 start-0 translate-middle"></div>
  <div class="position-absolute top-50 start-50 translate-middle"></div>
  <div class="position-absolute top-50 start-100 translate-middle"></div>
  <div class="position-absolute top-100 start-0 translate-middle"></div>
  <div class="position-absolute top-100 start-50 translate-middle"></div>
  <div class="position-absolute top-100 start-100 translate-middle"></div>
</div>

Na kobakisa .translate-middle-xto .translate-middle-yba classes, ba éléments ekoki kozala positionné kaka na direction horizontale to verticale.

<div class="position-relative">
  <div class="position-absolute top-0 start-0"></div>
  <div class="position-absolute top-0 start-50 translate-middle-x"></div>
  <div class="position-absolute top-0 end-0"></div>
  <div class="position-absolute top-50 start-0 translate-middle-y"></div>
  <div class="position-absolute top-50 start-50 translate-middle"></div>
  <div class="position-absolute top-50 end-0 translate-middle-y"></div>
  <div class="position-absolute bottom-0 start-0"></div>
  <div class="position-absolute bottom-0 start-50 translate-middle-x"></div>
  <div class="position-absolute bottom-0 end-0"></div>
</div>

Bandakisa

Talá mwa bandakisa ya bomoi ya solosolo ya bakelasi yango:

<button type="button" class="btn btn-primary position-relative">
  Mails <span class="position-absolute top-0 start-100 translate-middle badge rounded-pill bg-secondary">+99 <span class="visually-hidden">unread messages</span></span>
</button>

<button type="button" class="btn btn-dark position-relative">
  Marker <svg width="1em" height="1em" viewBox="0 0 16 16" class="position-absolute top-100 start-50 translate-middle mt-1 bi bi-caret-down-fill" fill="#212529" xmlns="http://www.w3.org/2000/svg"><path d="M7.247 11.14L2.451 5.658C1.885 5.013 2.345 4 3.204 4h9.592a1 1 0 0 1 .753 1.659l-4.796 5.48a1 1 0 0 1-1.506 0z"/></svg>
</button>

<button type="button" class="btn btn-primary position-relative">
  Alerts <span class="position-absolute top-0 start-100 translate-middle badge border border-light rounded-circle bg-danger p-2"><span class="visually-hidden">unread messages</span></span>
</button>

Okoki kosalela ba classes oyo na ba composants oyo ezali pona kosala ya sika. Kobosana te ete okoki kobakisa mosala na yango na kobakisa ba entrées na $position-valuesvariable.

<div class="position-relative m-4">
  <div class="progress" style="height: 1px;">
    <div class="progress-bar" role="progressbar" style="width: 50%;" aria-valuenow="50" aria-valuemin="0" aria-valuemax="100"></div>
  </div>
  <button type="button" class="position-absolute top-0 start-0 translate-middle btn btn-sm btn-primary rounded-pill" style="width: 2rem; height:2rem;">1</button>
  <button type="button" class="position-absolute top-0 start-50 translate-middle btn btn-sm btn-primary rounded-pill" style="width: 2rem; height:2rem;">2</button>
  <button type="button" class="position-absolute top-0 start-100 translate-middle btn btn-sm btn-secondary rounded-pill" style="width: 2rem; height:2rem;">3</button>
</div>

Sass oyo azali

Bakarte

Ba valeurs ya utilitaires ya position par défaut e déclaré na carte ya Sass, sima esalelamaka pona ko générer ba utilitaires na biso.

$position-values: (
  0: 0,
  50: 50%,
  100: 100%
);

API ya ba utilitaires

Ba utilitaires ya position esakolami na API ya ba utilitaires na biso na scss/_utilities.scss. Yekola ndenge ya kosalela API ya ba utilitaires.

    "position": (
      property: position,
      values: static relative absolute fixed sticky
    ),
    "top": (
      property: top,
      values: $position-values
    ),
    "bottom": (
      property: bottom,
      values: $position-values
    ),
    "start": (
      property: left,
      class: start,
      values: $position-values
    ),
    "end": (
      property: right,
      class: end,
      values: $position-values
    ),
    "translate-middle": (
      property: transform,
      class: translate-middle,
      values: (
        null: translate(-50%, -50%),
        x: translateX(-50%),
        y: translateY(-50%),
      )
    ),