Gyinabea

Fa saa shorthand utilities yi di dwuma ma hyehyɛ element bi gyinabea ntɛmntɛm.

Wɔ kratafa yi so

Gyinabea gyinapɛn ahorow

Wɔde adesua ahorow a ɛfa gyinabea a wɔde si hɔ ntɛmntɛm ho adesua ahorow wɔ hɔ, ɛwom sɛ ɛnyɛ nea ɛyɛ adwuma de.

<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>

Hyehyɛ nneɛma a ɛwom no

Hyehyɛ elements mmerɛw ne edge positioning utilities. Ɔkwan a wɔfa so yɛ no ne {property}-{position}.

Baabi a agyapade yɛ biako a:

top- ma topgyinabea a egyina hɔ
start- ma gyinabea a ewo soro left(wo LTR mu) .
bottom- ma bottomgyinabea a egyina hɔ
end- ma gyinabea a ewo soro right(wo LTR mu) .

Baabi a gyinabea yɛ biako a:

0- ma 0edge gyinabea
50- ma 50%edge gyinabea
100- ma 100%edge gyinabea

(Wobɛtumi de gyinabea botaeɛ pii aka ho denam nsɛm a wode bɛka $position-valuesSass map variable no ho no so.)

<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>

Mfinimfini nneɛma

Bio nso, wobɛtumi nso de transform utility class no ahyɛ elements no mfimfini .translate-middle.

Saa adesuakuw yi de nsakrae ahorow no translateX(-50%)ne translateY(-50%)element no di dwuma a, ɛne edge positioning utilities no ka bom no, ɛma wo kwan ma wode element bi mfinimfini koraa.

<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>

Ɛdenam ka ho .translate-middle-xanaa .translate-middle-yadesua ahorow so no, wobetumi de element ahorow no asi hɔ wɔ ɔkwan a ɛkɔ soro anaa ɛkɔ soro nkutoo so.

<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>

Nhwɛso ahorow

Here are some real life examples of these classes:

<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>

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.

<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

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%),
      )
    ),