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defuss-shadcn / Website / Events & Promotions / announcement

Built with: CSS

AnnouncementBLK

Highlights an important update with an optional link or dismissal - a bar, a filled strip, an inline card or a floating notice. Part of the Events & Promotions blocks.

On this page (5)
Component Skill — components/announcement/component-skill.md

Native basis

A non-modal <dialog open> labelled by its message, an inner wrapper with an icon, the message and a link, and a <form method="dialog"> close button that dismisses it without script.

Web Platform APIs

<dialog>:has()Container queries

Classes

.mk-announcement.mk-announcement-inner.mk-announcement-close.mk-announcement-tag

Data attributes

data-variant: primary, inline, floating.

§Bar

Default: a muted bar - a non-modal <dialog open>; the close button sits in a <form method="dialog"> and dismisses it without script. Try it.

§Primary

data-variant='primary': a strip in the primary color - for the one thing everyone must see.

§Inline

data-variant='inline': a rounded card inside the content - an icon in the chart color, the message, a link.

§Floating

data-variant='floating': fixed to the bottom of the viewport and sliding in (@starting-style) - here inside a positioned frame. Dismiss it to see the page behind.

§CSS view file

/* -- Announcement (website · Events & Promotions) -------------------------
   Highlights an important update with an optional link or dismissal - a bar, a filled strip, an inline card or a floating notice. */
@layer components {
  /* every box in the block measures border-box - the same on any page */
  :where(.mk-announcement, .mk-announcement *, .mk-announcement ::before, .mk-announcement ::after) {
    box-sizing: border-box;
  }
  .mk-announcement {
    position: relative;
    inset: auto;
    width: 100%;
    max-width: none;
    margin: 0;
    padding: 0;
    border: 0;
    background: var(--muted);
    color: var(--foreground);
    &:not([open]) {
      display: none;
    }
  }
  .mk-announcement-inner {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: center;
    gap: 0.375rem 0.75rem;
    padding: 0.625rem 3rem;
    font-size: 0.875rem;
    text-align: center;
    & > svg {
      flex: none;
      width: 1rem;
      height: 1rem;
    }
    & p {
      margin: 0;
    }
    & a {
      display: inline-flex;
      align-items: center;
      gap: 0.25rem;
      color: inherit;
      font-weight: 600;
      text-underline-offset: 3px;
    }
    & a svg {
      width: 0.875rem;
      height: 0.875rem;
    }
    & a:focus-visible {
      outline: 2px solid currentColor;
      outline-offset: 2px;
      border-radius: var(--radius-sm);
    }
  }
  .mk-announcement-close {
    position: absolute;
    top: 50%;
    inset-inline-end: 0.5rem;
    translate: 0 -50%;
    display: grid;
    place-items: center;
    width: 2rem;
    height: 2rem;
    padding: 0;
    border: 0;
    border-radius: var(--radius-md);
    background: transparent;
    color: inherit;
    cursor: pointer;
    opacity: 0.7;
    & svg {
      width: 1rem;
      height: 1rem;
    }
    &:hover {
      opacity: 1;
      background: color-mix(in oklch, currentColor 12%, transparent);
    }
    &:focus-visible {
      opacity: 1;
      outline: 2px solid currentColor;
      outline-offset: 1px;
    }
  }
  .mk-announcement-tag {
    padding: 0.0625rem 0.5rem;
    border-radius: 999px;
    background: var(--foreground);
    color: var(--background);
    font-size: 0.6875rem;
    font-weight: 700;
    letter-spacing: 0.04em;
    text-transform: uppercase;
  }
  .mk-announcement[data-variant="primary"] {
    background: var(--primary);
    color: var(--primary-foreground);
    & .mk-announcement-tag {
      background: var(--primary-foreground);
      color: var(--primary);
    }
  }
  .mk-announcement[data-variant="inline"] {
    border: 1px solid color-mix(in oklab, var(--chart-1) 35%, var(--border));
    border-radius: var(--radius-xl);
    background: color-mix(in oklab, var(--chart-1) 7%, var(--card));
    & .mk-announcement-inner {
      justify-content: flex-start;
      padding: 1rem 3.25rem 1rem 1.25rem;
      text-align: start;
    }
    & .mk-announcement-inner > svg {
      color: var(--chart-1);
      width: 1.25rem;
      height: 1.25rem;
    }
    & .mk-announcement-close {
      top: 0.75rem;
      translate: none;
    }
  }
  .mk-announcement[data-variant="floating"] {
    position: fixed;
    inset: auto 1rem 1rem;
    z-index: 40;
    width: auto;
    max-width: 34rem;
    margin-inline: auto;
    border: 1px solid var(--border);
    border-radius: var(--radius-xl);
    background: var(--popover);
    color: var(--popover-foreground);
    box-shadow: var(--shadow-xl);
    & .mk-announcement-inner {
      justify-content: flex-start;
      padding: 0.875rem 3.25rem 0.875rem 1rem;
      text-align: start;
    }
  }
  @starting-style {
    .mk-announcement[data-variant="floating"][open] {
      opacity: 0;
      translate: 0 1rem;
    }
  }
  .mk-announcement[data-variant="floating"] {
    transition:
      opacity 300ms ease,
      translate 300ms ease;
  }
  /* -- Accessibility ------------------------------------------- */
  @media (prefers-reduced-motion: reduce) {
    .mk-announcement[data-variant="floating"] {
      transition: none;
    }
  }
  @media (forced-colors: active) {
    .mk-announcement {
      border-block-end: 1px solid CanvasText;
    }
    .mk-announcement-close {
      border: 1px solid ButtonText;
    }
  }
}

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