Fronteiras

Use as utilidades de bordos para estilizar rapidamente o bordo e o radio do bordo dun elemento. Ideal para imaxes, botóns ou calquera outro elemento.

Nesta páxina

Borde

Use as utilidades de bordos para engadir ou eliminar bordos dun elemento. Escolle entre todas as fronteiras ou unha á vez.

Aditivo

<span class="border"></span>
<span class="border-top"></span>
<span class="border-end"></span>
<span class="border-bottom"></span>
<span class="border-start"></span>

Subtractivo

<span class="border-0"></span>
<span class="border-top-0"></span>
<span class="border-end-0"></span>
<span class="border-bottom-0"></span>
<span class="border-start-0"></span>

Cor do bordo

Cambia a cor do bordo usando utilidades creadas nas cores do noso tema.

<span class="border border-primary"></span>
<span class="border border-secondary"></span>
<span class="border border-success"></span>
<span class="border border-danger"></span>
<span class="border border-warning"></span>
<span class="border border-info"></span>
<span class="border border-light"></span>
<span class="border border-dark"></span>
<span class="border border-white"></span>

Ancho de bordo

<span class="border border-1"></span>
<span class="border border-2"></span>
<span class="border border-3"></span>
<span class="border border-4"></span>
<span class="border border-5"></span>

Borde-raio

Engade clases a un elemento para redondear facilmente as súas esquinas.

<img src="..." class="rounded" alt="...">
<img src="..." class="rounded-top" alt="...">
<img src="..." class="rounded-end" alt="...">
<img src="..." class="rounded-bottom" alt="...">
<img src="..." class="rounded-start" alt="...">
<img src="..." class="rounded-circle" alt="...">
<img src="..." class="rounded-pill" alt="...">

Tallas

Use as clases de escala para cantos redondeados máis grandes ou pequenos. Os tamaños van desde 0ata 3, e pódense configurar modificando a API de utilidades.

<img src="..." class="rounded-0" alt="...">
<img src="..." class="rounded-1" alt="...">
<img src="..." class="rounded-2" alt="...">
<img src="..." class="rounded-3" alt="...">

Sass

Variables

$border-width:                1px;
$border-widths: (
  1: 1px,
  2: 2px,
  3: 3px,
  4: 4px,
  5: 5px
);

$border-color:                $gray-300;

$border-radius:               .25rem;
$border-radius-sm:            .2rem;
$border-radius-lg:            .3rem;
$border-radius-pill:          50rem;

Mixins

@mixin border-radius($radius: $border-radius, $fallback-border-radius: false) {
  @if $enable-rounded {
    border-radius: valid-radius($radius);
  }
  @else if $fallback-border-radius != false {
    border-radius: $fallback-border-radius;
  }
}

@mixin border-top-radius($radius: $border-radius) {
  @if $enable-rounded {
    border-top-left-radius: valid-radius($radius);
    border-top-right-radius: valid-radius($radius);
  }
}

@mixin border-end-radius($radius: $border-radius) {
  @if $enable-rounded {
    border-top-right-radius: valid-radius($radius);
    border-bottom-right-radius: valid-radius($radius);
  }
}

@mixin border-bottom-radius($radius: $border-radius) {
  @if $enable-rounded {
    border-bottom-right-radius: valid-radius($radius);
    border-bottom-left-radius: valid-radius($radius);
  }
}

@mixin border-start-radius($radius: $border-radius) {
  @if $enable-rounded {
    border-top-left-radius: valid-radius($radius);
    border-bottom-left-radius: valid-radius($radius);
  }
}

@mixin border-top-start-radius($radius: $border-radius) {
  @if $enable-rounded {
    border-top-left-radius: valid-radius($radius);
  }
}

@mixin border-top-end-radius($radius: $border-radius) {
  @if $enable-rounded {
    border-top-right-radius: valid-radius($radius);
  }
}

@mixin border-bottom-end-radius($radius: $border-radius) {
  @if $enable-rounded {
    border-bottom-right-radius: valid-radius($radius);
  }
}

@mixin border-bottom-start-radius($radius: $border-radius) {
  @if $enable-rounded {
    border-bottom-left-radius: valid-radius($radius);
  }
}

API de utilidades

As utilidades de fronteira decláranse na nosa API de utilidades en scss/_utilities.scss. Aprende a usar a API de utilidades.

    "border": (
      property: border,
      values: (
        null: $border-width solid $border-color,
        0: 0,
      )
    ),
    "border-top": (
      property: border-top,
      values: (
        null: $border-width solid $border-color,
        0: 0,
      )
    ),
    "border-end": (
      property: border-right,
      class: border-end,
      values: (
        null: $border-width solid $border-color,
        0: 0,
      )
    ),
    "border-bottom": (
      property: border-bottom,
      values: (
        null: $border-width solid $border-color,
        0: 0,
      )
    ),
    "border-start": (
      property: border-left,
      class: border-start,
      values: (
        null: $border-width solid $border-color,
        0: 0,
      )
    ),
    "border-color": (
      property: border-color,
      class: border,
      values: map-merge($theme-colors, ("white": $white))
    ),
    "border-width": (
      property: border-width,
      class: border,
      values: $border-widths
    ),

    "rounded": (
      property: border-radius,
      class: rounded,
      values: (
        null: $border-radius,
        0: 0,
        1: $border-radius-sm,
        2: $border-radius,
        3: $border-radius-lg,
        circle: 50%,
        pill: $border-radius-pill
      )
    ),
    "rounded-top": (
      property: border-top-left-radius border-top-right-radius,
      class: rounded-top,
      values: (null: $border-radius)
    ),
    "rounded-end": (
      property: border-top-right-radius border-bottom-right-radius,
      class: rounded-end,
      values: (null: $border-radius)
    ),
    "rounded-bottom": (
      property: border-bottom-right-radius border-bottom-left-radius,
      class: rounded-bottom,
      values: (null: $border-radius)
    ),
    "rounded-start": (
      property: border-bottom-left-radius border-top-left-radius,
      class: rounded-start,
      values: (null: $border-radius)
    ),