Posisie
Gebruik hierdie snelskrifhulpmiddels om die posisie van 'n element vinnig op te stel.
Posisiewaardes
Vinnige posisioneringsklasse is beskikbaar, alhoewel hulle nie reageer nie.
<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>
Rangskik elemente
Rangskik elemente maklik met die randposisioneringshulpmiddels. Die formaat is {property}-{position}
.
Waar eiendom een van:
top
- vir die vertikaletop
posisiestart
- vir die horisontaleleft
posisie (in LTR)bottom
- vir die vertikalebottom
posisieend
- vir die horisontaleright
posisie (in LTR)
Waar posisie een van is:
0
- vir0
randposisie50
- vir50%
randposisie100
- vir100%
randposisie
(Jy kan meer posisiewaardes byvoeg deur inskrywings by die $position-values
Sass-kaartveranderlike by te voeg.)
<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>
Sentrum elemente
Daarbenewens kan jy ook die elemente sentreer met die transformasienutsklas .translate-middle
.
Hierdie klas pas die transformasies translateX(-50%)
en translateY(-50%)
op die element toe wat, in kombinasie met die randposisioneringshulpmiddels, jou toelaat om 'n element te sentreer.
<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>
Deur .translate-middle-x
of .translate-middle-y
klasse by te voeg, kan elemente slegs in horisontale of vertikale rigting geposisioneer word.
<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>
Voorbeelde
Hier is 'n paar werklike voorbeelde van hierdie klasse:
<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>
Jy kan hierdie klasse met bestaande komponente gebruik om nuwes te skep. Onthou dat jy die funksionaliteit daarvan kan uitbrei deur inskrywings by die $position-values
veranderlike te voeg.
<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
Kaarte
Verstekposisie-nutswaardes word in 'n Sass-kaart verklaar en dan gebruik om ons nutsprogramme te genereer.
$position-values: (
0: 0,
50: 50%,
100: 100%
);
Utilities API
Posisie nutsprogramme word verklaar in ons nutsprogramme API in scss/_utilities.scss
. Leer hoe om die utilities API te gebruik.
"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%),
)
),