Turanga

Whakamahia enei taputapu poto mo te whirihora tere i te tuunga o tetahi huānga.

I tenei wharangi

Nga uara tuunga

Kei te waatea nga karaehe tuunga tere, ahakoa kaore i te aro.

<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>

Whakaritea nga huānga

Whakaritea nga huānga me nga taputapu tuunga taha. Ko te whakatakotoranga ko {property}-{position}.

Ko te taonga tetahi o:

toptop- mo te tuunga poutū
start- mo te lefttuunga whakapae (i roto i te LTR)
bottombottom- mo te tuunga poutū
end- mo te righttuunga whakapae (i roto i te LTR)

Ko te waahi ko tetahi o:

0- mo 0te tuunga taha
50- mo 50%te tuunga taha
100- mo 100%te tuunga taha

(Ka taea e koe te taapiri atu uara tuunga ma te taapiri i nga urunga ki te $position-valuestaurangi mahere 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>

Huānga pokapū

I tua atu, ka taea hoki e koe te whakauru i nga huānga me te akomanga whaipainga huringa .translate-middle.

Ko tenei karaehe e pa ana ki nga huringa translateX(-50%)me translateY(-50%)te huānga e hono ana me nga taputapu tuunga taha, ka taea e koe te whakauru i tetahi huānga.

<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>

Ma te taapiri , ma nga karaehe .translate-middle-xranei .translate-middle-y, ka taea te whakanoho i nga huānga ki te ahunga whakapae, poutū ranei.

<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>

Tauira

Anei etahi tauira o te oranga o enei karaehe:

<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>

Ka taea e koe te whakamahi i enei akomanga me nga waahanga o mua hei hanga i nga mea hou. Kia mahara ka taea e koe te whakawhānui ake i tana mahi ma te taapiri i nga urunga ki te $position-valuestaurangi.

<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

Mahere

Ko nga uara whaipainga tuunga taunoa ka whakaatuhia ki te mapi Sass, ka whakamahia hei whakaputa i a maatau taputapu.

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

API taputapu

Ka whakaatuhia nga taputapu tuunga i roto i o maatau taputapu API i roto i scss/_utilities.scss. Akohia me pehea te whakamahi i nga taputapu 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%),
      )
    ),