Pożizzjoni

Uża dawn l-utilitajiet shorthand biex tikkonfigura malajr il-pożizzjoni ta 'element.

Fuq din il-paġna

Valuri tal-pożizzjoni

Klassijiet ta 'pożizzjonament ta' malajr huma disponibbli, għalkemm mhumiex reattivi.

<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>

Irranġa l-elementi

Irranġa l-elementi faċilment bl-utilitajiet tal-pożizzjonament tat-tarf. Il-format huwa {property}-{position}.

Fejn il-proprjetà hija waħda minn:

toptop- għall- pożizzjoni vertikali
start- għall-pożizzjoni orizzontali left(f'LTR)
bottombottom- għall- pożizzjoni vertikali
end- għall-pożizzjoni orizzontali right(f'LTR)

Fejn il- pożizzjoni hija waħda minn:

0- għall 0-pożizzjoni tat-tarf
50- għall 50%-pożizzjoni tat-tarf
100- għall 100%-pożizzjoni tat-tarf

(Tista 'żżid aktar valuri ta' pożizzjoni billi żżid entrati mal- $position-valuesvarjabbli tal-mappa Sass.)

html

<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>

Elementi taċ-ċentru

Barra minn hekk, tista 'wkoll tiċċentra l-elementi bil-klassi ta' utilità tat-trasformazzjoni .translate-middle.

Din il-klassi tapplika t-trasformazzjonijiet translateX(-50%)u translateY(-50%)għall-element li, flimkien mal-utilitajiet tal-pożizzjonament tat-tarf, jippermettilek li tiċċentra element assolut.

html

<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>

Billi żżid .translate-middle-xjew .translate-middle-yklassijiet, l-elementi jistgħu jitqiegħdu biss f'direzzjoni orizzontali jew vertikali.

html

<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>

Eżempji

Hawn huma xi eżempji tal-ħajja reali ta’ dawn il-klassijiet:

html

<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" 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>

You can use these classes with existing components to create new ones. Remember that you can extend its functionality by adding entries to the $position-values variable.

html

<div class="position-relative m-4">
  <div class="progress" style="height: 1px;">
    <div class="progress-bar" role="progressbar" aria-label="Progress" 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

Maps

Default position utility values are declared in a Sass map, then used to generate our utilities.

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

Utilities API

Position utilities are declared in our utilities API in scss/_utilities.scss. Learn how to use the utilities API.

    "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%),
      )
    ),