Cefndir
Cyfleu ystyr drwodd background-colorac ychwanegu addurniadau gyda graddiannau.
Lliw cefndir
Yn debyg i'r dosbarthiadau lliw testun cyd-destunol, gosodwch gefndir elfen i unrhyw ddosbarth cyd-destunol. Nid yw cyfleustodau cefndir yn gosodcolor , felly mewn rhai achosion byddwch am ddefnyddio .text-* cyfleustodau lliw .
<div class="p-3 mb-2 bg-primary text-white">.bg-primary</div>
<div class="p-3 mb-2 bg-secondary text-white">.bg-secondary</div>
<div class="p-3 mb-2 bg-success text-white">.bg-success</div>
<div class="p-3 mb-2 bg-danger text-white">.bg-danger</div>
<div class="p-3 mb-2 bg-warning text-dark">.bg-warning</div>
<div class="p-3 mb-2 bg-info text-dark">.bg-info</div>
<div class="p-3 mb-2 bg-light text-dark">.bg-light</div>
<div class="p-3 mb-2 bg-dark text-white">.bg-dark</div>
<div class="p-3 mb-2 bg-body text-dark">.bg-body</div>
<div class="p-3 mb-2 bg-white text-dark">.bg-white</div>
<div class="p-3 mb-2 bg-transparent text-dark">.bg-transparent</div>Graddiant cefndir
Trwy ychwanegu .bg-gradientdosbarth, mae graddiant llinol yn cael ei ychwanegu fel delwedd gefndir i'r cefndiroedd. Mae'r graddiant hwn yn dechrau gyda gwyn lled-dryloyw sy'n pylu i'r gwaelod.
Oes angen graddiant yn eich CSS personol? Dim ond ychwanegu background-image: var(--bs-gradient);.
Sass
Yn ogystal â'r swyddogaethau Sass canlynol, ystyriwch ddarllen am ein priodweddau arfer CSS (aka newidynnau CSS) ar gyfer lliwiau a mwy.
Newidynnau
Cynhyrchir y mwyafrif o background-colorgyfleustodau gan ein lliwiau thema, wedi'u hailbennu o'n newidynnau palet lliw generig.
$blue: #0d6efd;
$indigo: #6610f2;
$purple: #6f42c1;
$pink: #d63384;
$red: #dc3545;
$orange: #fd7e14;
$yellow: #ffc107;
$green: #198754;
$teal: #20c997;
$cyan: #0dcaf0;
$primary: $blue;
$secondary: $gray-600;
$success: $green;
$info: $cyan;
$warning: $yellow;
$danger: $red;
$light: $gray-100;
$dark: $gray-900;
$gradient: linear-gradient(180deg, rgba($white, .15), rgba($white, 0));
Mae lliwiau graddlwyd ar gael hefyd, ond dim ond is-set a ddefnyddir i gynhyrchu unrhyw gyfleustodau.
$white: #fff;
$gray-100: #f8f9fa;
$gray-200: #e9ecef;
$gray-300: #dee2e6;
$gray-400: #ced4da;
$gray-500: #adb5bd;
$gray-600: #6c757d;
$gray-700: #495057;
$gray-800: #343a40;
$gray-900: #212529;
$black: #000;
Map
Yna rhoddir lliwiau thema ar fap Sass fel y gallwn ddolennu drostynt i gynhyrchu ein cyfleustodau, addaswyr cydrannau, a mwy.
$theme-colors: (
"primary": $primary,
"secondary": $secondary,
"success": $success,
"info": $info,
"warning": $warning,
"danger": $danger,
"light": $light,
"dark": $dark
);
Mae lliwiau graddlwyd hefyd ar gael fel map Sass. Ni ddefnyddir y map hwn i gynhyrchu unrhyw gyfleustodau.
$grays: (
"100": $gray-100,
"200": $gray-200,
"300": $gray-300,
"400": $gray-400,
"500": $gray-500,
"600": $gray-600,
"700": $gray-700,
"800": $gray-800,
"900": $gray-900
);
cymysgeddau
Ni ddefnyddir unrhyw gymysgeddau i gynhyrchu ein cyfleustodau cefndirol , ond mae gennym rai cymysgeddau ychwanegol ar gyfer sefyllfaoedd eraill lle hoffech chi greu eich graddiannau eich hun.
@mixin gradient-bg($color: null) {
background-color: $color;
@if $enable-gradients {
background-image: var(--#{$variable-prefix}gradient);
}
}
// Horizontal gradient, from left to right
//
// Creates two color stops, start and end, by specifying a color and position for each color stop.
@mixin gradient-x($start-color: $gray-700, $end-color: $gray-800, $start-percent: 0%, $end-percent: 100%) {
background-image: linear-gradient(to right, $start-color $start-percent, $end-color $end-percent);
}
// Vertical gradient, from top to bottom
//
// Creates two color stops, start and end, by specifying a color and position for each color stop.
@mixin gradient-y($start-color: $gray-700, $end-color: $gray-800, $start-percent: null, $end-percent: null) {
background-image: linear-gradient(to bottom, $start-color $start-percent, $end-color $end-percent);
}
@mixin gradient-directional($start-color: $gray-700, $end-color: $gray-800, $deg: 45deg) {
background-image: linear-gradient($deg, $start-color, $end-color);
}
@mixin gradient-x-three-colors($start-color: $blue, $mid-color: $purple, $color-stop: 50%, $end-color: $red) {
background-image: linear-gradient(to right, $start-color, $mid-color $color-stop, $end-color);
}
@mixin gradient-y-three-colors($start-color: $blue, $mid-color: $purple, $color-stop: 50%, $end-color: $red) {
background-image: linear-gradient($start-color, $mid-color $color-stop, $end-color);
}
@mixin gradient-radial($inner-color: $gray-700, $outer-color: $gray-800) {
background-image: radial-gradient(circle, $inner-color, $outer-color);
}
@mixin gradient-striped($color: rgba($white, .15), $angle: 45deg) {
background-image: linear-gradient($angle, $color 25%, transparent 25%, transparent 50%, $color 50%, $color 75%, transparent 75%, transparent);
}
Utilities API
Mae cyfleustodau cefndir yn cael eu datgan yn ein API cyfleustodau yn scss/_utilities.scss. Dysgwch sut i ddefnyddio'r API cyfleustodau.
"background-color": (
property: background-color,
class: bg,
values: map-merge(
$theme-colors,
(
"body": $body-bg,
"white": $white,
"transparent": transparent
)
)
),