Aurrekariak
Transmititu esanahia background-coloreta gehitu gradienteekin dekorazioa.
Atzeko planoaren kolorea
Testu-testuaren kolore-klaseen antzera, ezarri elementu baten atzeko planoa edozein testuinguru-klasetan. Atzeko planoko utilitateak ez dira ezartzen , beraz, kasu batzuetan color.text-* kolore-utilitateak erabili nahi dituzu .
<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>Atzeko planoko gradientea
Klase bat gehituz gero .bg-gradient, gradiente lineal bat gehitzen da atzeko planoei atzeko irudi gisa. Gradiente hau zuri erdi garden batekin hasten da, behealderantz lausotzen dena.
Gradiente bat behar al duzu zure CSS pertsonalizatuan? Gehitu besterik ez background-image: var(--bs-gradient);.
Sass
Sass-en funtzionaltasun honetaz gain, kontuan hartu gure barneko CSS propietate pertsonalizatuei buruz (aka CSS aldagaiak) koloreei eta gehiagori buruz irakurtzea.
Aldagaiak
Utilitate gehienak background-colorgure gai-koloreek sortzen dituzte, gure kolore-paleta aldagai generikoetatik berriro esleituta.
$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));
Gris-eskalako koloreak ere eskuragarri daude, baina azpimultzo bat bakarrik erabiltzen da utilitateak sortzeko.
$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;
Mapa
Ondoren, gaiaren koloreak Sass mapa batean jartzen dira, haien gainean errepasatu ahal izateko gure utilitateak, osagaien modifikatzaileak eta abar sortzeko.
$theme-colors: (
"primary": $primary,
"secondary": $secondary,
"success": $success,
"info": $info,
"warning": $warning,
"danger": $danger,
"light": $light,
"dark": $dark
);
Gris-eskalako koloreak Sass mapa gisa ere eskuragarri daude. Mapa hau ez da erabilgarritasunik sortzeko erabiltzen.
$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": $gray-900
);
Mixinak
Ez da mixin-ik erabiltzen gure atzeko tresnak sortzeko , baina baditugu mixin gehigarri batzuk zure gradienteak sortu nahi dituzun beste egoeretarako.
@mixin gradient-bg($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 APIa
Atzeko planoko utilitateak gure utilitateen APIan deklaratzen dira scss/_utilities.scss. Ikasi utilitateen APIa erabiltzen.
"background-color": (
property: background-color,
class: bg,
values: map-merge(
$theme-colors,
(
"body": $body-bg,
"white": $white,
"transparent": transparent
)
)
),