Boemo

Sebelisa lisebelisoa tsena tse khutšoane bakeng sa ho hlophisa kapele boemo ba element.

Leqepheng lena

Boemo ba maemo

Lithuto tsa maemo a potlakileng lia fumaneha, leha li sa arabele.

<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>

Rulahanya likarolo

Hlophisa likarolo habonolo ka lisebelisoa tsa ho beha maemo. Sebopeho ke {property}-{position}.

Moo thepa e leng e 'ngoe ea:

toptop- bakeng sa boemo bo otlolohileng
start- bakeng sa leftboemo bo otlolohileng (ho LTR)
bottombottom- bakeng sa boemo bo otlolohileng
end- bakeng sa rightboemo bo otlolohileng (ho LTR)

Moo boemo e leng e 'ngoe ea:

0- bakeng sa 0boemo ba bohale
50- bakeng sa 50%boemo ba bohale
100- bakeng sa 100%boemo ba bohale

(O ka eketsa boleng ba maemo ka ho kenyelletsa likenyo ho $position-values'mapa oa 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>

Lintlha tse bohareng

Ntle le moo, o ka boela oa beha lintho tse bohareng ka sehlopha sa lisebelisoa tsa phetoho .translate-middle.

Sehlopha sena se sebetsa ka liphetoho translateX(-50%)le translateY(-50%)ho element eo, hammoho le lits'ebeletso tsa boemo bo holimo, e u lumellang hore u be le setsi sa mantlha.

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>

Ka ho eketsa .translate-middle-xkapa .translate-middle-ylitlelase, likarolo li ka beoa feela ka lehlakoreng le otlolohileng kapa le otlolohileng.

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>

Mehlala

Mona ke mehlala ea 'nete ea bophelo ea lihlopha tsena:

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>

U ka sebelisa litlelase tsena tse nang le likarolo tse teng ho theha tse ncha. Hopola hore o ka eketsa ts'ebetso ea eona ka ho kenyelletsa likenyo ho $position-valuesfeto-fetoha.

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

Limmapa

Maemo a kamehla a hlahisoa 'mapeng oa Sass, ebe o sebelisoa ho hlahisa lisebelisoa tsa rona.

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

Utilities API

Lisebelisoa tsa boemo li phatlalatsoa ho lits'ebeletso tsa rona tsa API ho scss/_utilities.scss. Ithute ho sebelisa lisebelisoa tsa 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%),
      )
    ),