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Ọnọdụ

Jiri ngwa mkpirisi ndị a maka ịhazi ngwa ngwa ọnọdụ nke mmewere.

Ụkpụrụ ọnọdụ

klaasị itinye ngwa ngwa dị, n'agbanyeghị na ha anaghị anabata ya.

<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>

Hazie ihe

Hazie ihe n'ụzọ dị mfe site na iji ihe ndozi ihu. Usoro bụ {property}-{position}.

Ebe ihe onwunwe bụ otu n'ime:

  • top- maka ọnọdụ kwụ topọtọ
  • start- maka ọnọdụ kwụ ọtọ left(na LTR)
  • bottom- maka ọnọdụ kwụ bottomọtọ
  • end- maka ọnọdụ kwụ ọtọ right(na LTR)

Ebe ọnọdụ bụ otu n'ime:

  • 0- maka 0ọnọdụ ihu
  • 50- maka 50%ọnọdụ ihu
  • 100- maka 100%ọnọdụ ihu

(Ị nwere ike ịgbakwunye ụkpụrụ ọnọdụ site na ịgbakwunye ndenye na $position-valuesmgbanwe maapụ 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>

Ihe etiti

Na mgbakwunye, ị nwekwara ike etiti ihe ndị ahụ na klas mgbanwe ịba uru .translate-middle.

Klas a na-emetụta mgbanwe translateX(-50%)na translateY(-50%)mmewere nke, na njikọ na ihu n'ọnọdu utilities, na-enye gị ohere zuru ezu na etiti ihe mmewere.

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>

Site n'ịgbakwụnye .translate-middle-xma ọ bụ .translate-middle-yklaasị, enwere ike idowe ihe ndị ahụ naanị n'akụkụ kwụ ọtọ ma ọ bụ kwụ ọtọ.

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>

Ihe atụ

Nke a bụ ụfọdụ ọmụmaatụ ndụ nke klaasị ndị a:

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>

Ị nwere ike iji klaasị ndị a nwere ihe ndị dị adị iji mepụta nke ọhụrụ. Cheta na ị nwere ike ịgbatị ọrụ ya site na ịgbakwunye ndenye na $position-valuesmgbanwe.

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

Maapụ

A na-ekwupụta ụkpụrụ uru ọnọdụ akpaghị aka na maapụ Sass, wee wepụta akụrụngwa anyị.

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

Utilities API

A na-ekwupụta akụrụngwa ọnọdụ na ngwa anyị API na scss/_utilities.scss. Mụta otu esi eji ngwa 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%),
      )
    ),