Component hrang hrangte

Base class hrang hrang te

Bootstrap-a component hrang hrangte hi a tam zawk chu base-modifier nomenclature hmanga siam a ni. Shared property tam thei ang ber chu base class-ah kan group a, like .btn, chutah chuan variant tinte tana style hrang hrang chu modifier class-ah kan group a, like .btn-primaryor.btn-success

Kan modifier class siam tur chuan Sass’s @eachloops hmangin Sass map chungah iterate thin. Hei hi a bik takin kan component pakhat $theme-colorsvariant siam nan leh breakpoint tin atan responsive variant siam nan a tangkai hle. Heng Sass maps te hi i customize a, recompile i tih hian i inthlak danglamna te chu heng loop ah te hian a lang chhuak nghal vek ang.

Heng loop te hi customize dan tur leh Bootstrap-a base-modifier approach chu i code-a tihzauh dan tur chu kan Sass maps leh loops docs te hi en la .

Modifier te pawh a awm

Bootstrap-a component tam tak hi base-modifier class approach hmanga siam a ni. Hei hian a awmzia chu styling bulk chu base class (eg, .btn)-ah a awm a, style variation erawh chu modifier class (eg, .btn-danger)-ah a innghat thung tihna a ni. Heng modifier class te hi $theme-colorsmap atanga siam niin kan modifier class te number leh hming customizing siam a ni.

$theme-colorsHetah hian map kan loop over dan .alertleh .list-groupcomponents te modifier kan siam dan entirnan pahnih kan rawn tarlang e .

// Generate contextual modifier classes for colorizing the alert.

@each $state, $value in $theme-colors {
  $alert-background: shift-color($value, $alert-bg-scale);
  $alert-border: shift-color($value, $alert-border-scale);
  $alert-color: shift-color($value, $alert-color-scale);
  @if (contrast-ratio($alert-background, $alert-color) < $min-contrast-ratio) {
    $alert-color: mix($value, color-contrast($alert-background), abs($alert-color-scale));
  }
  .alert-#{$state} {
    @include alert-variant($alert-background, $alert-border, $alert-color);
  }
}

// List group contextual variants
//
// Add modifier classes to change text and background color on individual items.
// Organizationally, this must come after the `:hover` states.

@each $state, $value in $theme-colors {
  $list-group-variant-bg: shift-color($value, $list-group-item-bg-scale);
  $list-group-variant-color: shift-color($value, $list-group-item-color-scale);
  @if (contrast-ratio($list-group-variant-bg, $list-group-variant-color) < $min-contrast-ratio) {
    $list-group-variant-color: mix($value, color-contrast($list-group-variant-bg), abs($list-group-item-color-scale));
  }

  @include list-group-item-variant($state, $list-group-variant-bg, $list-group-variant-color);
}

Chhanna pe thei

Heng Sass loop te hi color maps chauh a ni lo, chutiang bawkin. I component hrang hrangte responsive variation i siam thei bawk. Entirnan Sass map @eachatana loop pakhat leh media query include kan mix na dropdowns te kan responsive alignment hi han la teh.$grid-breakpoints

// We deliberately hardcode the `bs-` prefix because we check
// this custom property in JS to determine Popper's positioning

@each $breakpoint in map-keys($grid-breakpoints) {
  @include media-breakpoint-up($breakpoint) {
    $infix: breakpoint-infix($breakpoint, $grid-breakpoints);

    .dropdown-menu#{$infix}-start {
      --bs-position: start;

      &[data-bs-popper] {
        right: auto;
        left: 0;
      }
    }

    .dropdown-menu#{$infix}-end {
      --bs-position: end;

      &[data-bs-popper] {
        right: 0;
        left: auto;
      }
    }
  }
}

I , i siam danglam a nih $grid-breakpointschuan, i tihdanglamte chu chu map chunga loop iterating zawng zawngah a hman vek ang.

$grid-breakpoints: (
  xs: 0,
  sm: 576px,
  md: 768px,
  lg: 992px,
  xl: 1200px,
  xxl: 1400px
);

Kan Sass map leh variable te siam danglam dan tur hriat belh leh entirnan Grid documentation a Sass section ah hian en la .

Mahni siam chhuah

Bootstrap hmanga i siam hunah heng kaihhruainate hi hmang la, mahni component siam turin kan fuih a che. Hetiang approach hi kan documentation leh entirnan custom components te pawh kan tizau tawh a ni. Kan callout ang chi component te hi kan component pek ang bawkin base leh modifier class te nen siam a ni.

<div class="callout">...</div>

I CSS ah chuan a hnuaia mi ang chi hi i nei ang a, chutah chuan styling tam zawk chu via .callout. Tichuan, variant tinte inkara style danglam bikte chu modifier class hmangin control a ni.

// Base class
.callout {}

// Modifier classes
.callout-info {}
.callout-warning {}
.callout-danger {}

Callouts tan chuan, chu styling danglam tak chu a border-left-color. Chu base class chu chutiang modifier class pakhat nen i combine chuan i component family kimchang chu i hmu ang: