Nafasi

Tumia huduma hizi za mkato kwa kusanidi kwa haraka nafasi ya kipengele.

Katika ukurasa huu

Maadili ya nafasi

Madarasa ya kuweka nafasi kwa haraka yanapatikana, ingawa hayasikii.

<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>

Panga vipengele

Panga vipengele kwa urahisi na huduma za kuweka makali. Muundo ni {property}-{position}.

Ambapo mali ni moja ya:

toptop- kwa nafasi ya wima
start- kwa nafasi ya mlalo left(katika LTR)
bottombottom- kwa nafasi ya wima
end- kwa nafasi ya mlalo right(katika LTR)

Ambapo nafasi ni moja ya:

0- kwa 0msimamo wa makali
50- kwa 50%msimamo wa makali
100- kwa 100%msimamo wa makali

(Unaweza kuongeza maadili zaidi ya nafasi kwa kuongeza maingizo kwenye utofauti wa $position-valuesramani ya 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>

Vipengele vya katikati

Kwa kuongezea, unaweza pia kuweka vitu katikati na darasa la matumizi ya kubadilisha .translate-middle.

Darasa hili linatumika kwa mabadiliko translateX(-50%)na translateY(-50%)kwa kipengele ambacho, pamoja na huduma za uwekaji makali, hukuruhusu kuweka kipengee katikati kabisa.

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>

Kwa kuongeza .translate-middle-xau .translate-middle-ymadarasa, vipengele vinaweza kuwekwa tu katika mwelekeo wa usawa au wima.

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>

Mifano

Hapa kuna mifano ya maisha halisi ya madarasa haya:

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>

Unaweza kutumia madarasa haya na vijenzi vilivyopo kuunda vipya. Kumbuka kuwa unaweza kupanua utendakazi wake kwa kuongeza maingizo kwenye $position-valueskutofautisha.

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

Ramani

Thamani chaguo-msingi za matumizi zinatangazwa kwenye ramani ya Sass, kisha kutumika kutengeneza huduma zetu.

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

API ya Huduma

Huduma za nafasi zinatangazwa katika API ya huduma zetu katika scss/_utilities.scss. Jifunze jinsi ya kutumia API ya huduma.

    "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%),
      )
    ),