Post

Bain úsáid as na fóntais ghearrshaolacha seo chun suíomh eiliminte a chumrú go tapa.

Ar an leathanach seo

Luachanna poist

Tá ranganna suite tapa ar fáil, cé nach bhfuil siad sofhreagrach.

<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>

Eilimintí a shocrú

Eilimintí a shocrú go héasca leis an imeall suite fóntais. Tá an fhormáid {property}-{position}.

Sa chás gur ceann de na nithe seo a leanas an mhaoin :

top- don topsuíomh ingearach
start- don leftsuíomh cothrománach (i LTR)
bottom- don bottomsuíomh ingearach
end- don rightsuíomh cothrománach (i LTR)

Áit a bhfuil an suíomh mar cheann de:

0- le haghaidh 0suíomh imeall
50- le haghaidh 50%suíomh imeall
100- le haghaidh 100%suíomh imeall

(Is féidir leat tuilleadh luachanna suímh a chur leis trí iontrálacha a chur leis an $position-valuesathróg léarscáile 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>

Eilimintí ionaid

Ina theannta sin , is féidir leat ionad freisin na heilimintí leis an rang fóntais a athrú .translate-middle.

Baineann an rang seo leis na claochluithe translateX(-50%)agus translateY(-50%)leis an eilimint a ligeann duit, i gcomhcheangal leis na fóntais suite imeall, duit eilimint a lárú go hiomlán.

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>

Trí chur leis .translate-middle-xnó .translate-middle-yranganna, ní féidir eilimintí a shuíomh ach amháin i dtreo cothrománach nó ingearach.

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>

Samplaí

Seo roinnt samplaí den saol fíor de na ranganna seo:

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>

Is féidir leat na ranganna seo a úsáid le comhpháirteanna atá ann cheana féin chun cinn nua a chruthú. Cuimhnigh gur féidir leat a fheidhmiúlacht a leathnú trí iontrálacha a chur leis an $position-valuesathróg.

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

Léarscáileanna

Dearbhaítear luachanna fóntais suímh réamhshocraithe ar léarscáil Sass, a úsáidtear ansin chun ár bhfóntais a ghiniúint.

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

Utilities API

Fógraítear fóntais suímh inár bhfóntas API i scss/_utilities.scss. Foghlaim conas an API fóntais a úsáid.

    "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%),
      )
    ),