v0.9.4defuss-shadcn
Theme

defuss-shadcn / Navigation / navbar

Built with: CSS

NavbarORG

The top bar of an app or a site: a <nav> with start, center and end regions for the brand, the primary links and the actions - buttons, search, an account dropdown, a cart indicator. The responsive menu is one native popover: inline on wide screens, opened by a toggle on narrow ones. No JavaScript. The header of this site is the same pattern.

On this page (12)
Component Skill — components/navbar/component-skill.md

Native basis

<nav> with three flex regions; <details> submenus; a popover for the collapsed menu.

Web Platform APIs

popoveranchor-scope<details>aria-current

Classes

.navbar.navbar-start.navbar-center.navbar-end.navbar-brand.navbar-menu.navbar-toggle.navbar-collapse

Data attributes

data-variantmuted, primary, neutral, ghost, glass, floatingdata-sizesm, md (default), lg - the bar's minimum heightdata-position="sticky"sticks to the top of its scroll containerdata-collapsesm, md, lg (collapse below 40 / 48 / 64rem) or always

§Title only

Just the brand.

§Title and icon

The brand in .navbar-start (it takes the free space), an action in .navbar-end.

§Icons at start and end

A menu button at the start, the brand centered in .navbar-center, a search button at the end - start and end share the free space equally, so the center is centered on the bar.

§Menu and submenu

A .navbar-menu of links; a <details> item is a submenu (details name="…" keeps one open at a time). aria-current="page" marks the active link. Below 48rem the menu folds behind the ☰ toggle (data-collapse="md").

§Search and account

Any component fits: an .input-group search field (magnifier included) that shrinks on narrow screens, and a dropdown behind the avatar.

§Cart indicator

An .indicator puts the item count on the cart button - data-inset pulls it onto the icon corner, past the button's padding; the avatar opens the account menu.

§Dropdown, centered logo, icons

A menu dropdown at the start, the logo in the middle, search and notifications at the end - the pinging dot sits on the bell (data-inset="lg").

§Responsive

data-collapse="md": from 48rem the menu sits in the middle of the bar; below, the ☰ toggle opens the SAME element as a popover under it - one menu in the markup, no JavaScript. Try the device sizes in the toolbar.

§Colors

data-variant: muted, primary, neutral (charcoal), ghost. Menu links and ghost buttons take the bar's text color; below 40rem the links fold behind the toggle.

§Glass and floating

glass: translucent with a backdrop blur - over a photo or scrolling content. floating: a rounded pill with a shadow, inside a padded container.

§Sticky and sizes

data-position="sticky" keeps the bar at the top of its scroll container (scroll the box); data-size sm / md / lg sets its height.

§CSS view file

/* -- Navbar component --------------------------------------------- */
@layer components {
  /* An app bar: .navbar-start / .navbar-center / .navbar-end regions (start
     and end share the free space equally, so the center stays truly
     centered), a .navbar-brand, a .navbar-menu of links (with <details>
     submenus), and any component inside - buttons, inputs, dropdowns,
     avatars, indicators. Responsive collapse is native: the collapsible
     part is a popover (.navbar-collapse[popover]) shown INLINE from the
     data-collapse breakpoint up and opened by a .navbar-toggle below it - one
     menu in the markup, no JavaScript. anchor-scope keeps each navbar's
     toggle anchor to itself. */
  .navbar {
    --_h: 3.5rem;
    anchor-scope: --navbar-toggle;
    box-sizing: border-box; /* the size IS the bar height */
    display: flex;
    align-items: center;
    gap: 0.5rem;
    min-height: var(--_h);
    padding: 0.5rem 1rem;
    background-color: var(--background);
    color: var(--foreground);
    border-bottom: 1px solid var(--border);
    /* -- Sizes -------------------------------------------------------- */
    &[data-size="sm"] { --_h: 3rem; padding-block: 0.25rem; }
    &[data-size="md"] { --_h: 3.5rem; }
    &[data-size="lg"] { --_h: 4.5rem; padding-block: 0.75rem; }
    /* -- Variants ------------------------------------------------------ */
    &[data-variant="muted"] { background-color: var(--muted); border-color: transparent; }
    &[data-variant="primary"] { background-color: var(--primary); color: var(--primary-foreground); border-color: transparent; }
    /* a charcoal bar (like the neutral card): the inverse colors, softened */
    &[data-variant="neutral"] { background-color: color-mix(in oklch, var(--foreground) 78%, var(--background)); color: var(--background); border-color: transparent; }
    &[data-variant="ghost"] { background-color: transparent; border-color: transparent; }
    &[data-variant="glass"] {
      background-color: color-mix(in oklch, var(--background) 62%, transparent);
      border-color: color-mix(in oklch, var(--foreground) 12%, transparent);
      backdrop-filter: blur(14px) saturate(1.4);
    }
    /* a floating pill: rounded, bordered all round, a shadow - put it inside
       a padded container */
    &[data-variant="floating"] {
      border: 1px solid var(--border);
      border-radius: var(--radius-xl);
      box-shadow: var(--shadow-md);
    }
    /* -- Position ------------------------------------------------------ */
    &[data-position="sticky"] { position: sticky; top: 0; z-index: 40; }
    /* ghost / link buttons on a colored bar take its text color */
    &:is([data-variant="primary"], [data-variant="neutral"]) .btn:is([data-variant="ghost"], [data-variant="link"]) {
      color: inherit;
      &:hover { background-color: color-mix(in oklch, currentColor 16%, transparent); color: inherit; }
    }
  }
  .navbar-start,
  .navbar-end {
    flex: 1 1 0;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    min-width: 0;
  }
  .navbar-end { justify-content: flex-end; }
  .navbar-center {
    flex: 0 0 auto;
    display: flex;
    align-items: center;
    gap: 0.5rem;
  }
  /* -- Brand ------------------------------------------------------------ */
  .navbar-brand {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.25rem 0.5rem;
    border-radius: var(--radius-md);
    color: inherit;
    font-size: 1.0625rem;
    font-weight: 600;
    letter-spacing: -0.01em;
    text-decoration: none;
    white-space: nowrap;
    & :is(img, svg) { height: 1.5rem; width: auto; }
    &:is(a):hover { background-color: color-mix(in oklch, currentColor 8%, transparent); }
    &:focus-visible { outline: 2px solid var(--ring); outline-offset: 2px; }
  }
  /* -- Menu ------------------------------------------------------------- */
  .navbar-menu {
    display: flex;
    align-items: center;
    gap: 0.125rem;
    margin: 0;
    padding: 0;
    list-style: none;
    & :is(a, summary) {
      display: flex;
      align-items: center;
      gap: 0.375rem;
      padding: 0.375rem 0.75rem;
      border-radius: var(--radius-md);
      color: color-mix(in oklch, currentColor 72%, transparent);
      font-size: 0.875rem;
      font-weight: 500;
      text-decoration: none;
      white-space: nowrap;
      cursor: pointer;
      list-style: none;
      &:hover { color: inherit; background-color: color-mix(in oklch, currentColor 8%, transparent); }
      &:focus-visible { outline: 2px solid var(--ring); outline-offset: 2px; }
      & svg { width: 1rem; height: 1rem; }
    }
    & :is(a, summary):hover { color: currentColor; }
    & a[aria-current="page"] {
      color: inherit;
      background-color: color-mix(in oklch, currentColor 10%, transparent);
    }
    /* a submenu: <details><summary>…</summary><ul>…</ul></details> - the
       chevron turns when open; the list drops below as a small popover-like
       panel. <details name="…"> keeps one open at a time. */
    & details { position: relative; }
    & summary::-webkit-details-marker { display: none; }
    & summary::after {
      content: '';
      width: 0.375rem;
      height: 0.375rem;
      margin-inline-start: 0.125rem;
      border-right: 1.5px solid currentColor;
      border-bottom: 1.5px solid currentColor;
      rotate: 45deg;
      translate: 0 -0.125rem;
      transition: rotate 150ms ease;
    }
    & details[open] > summary::after { rotate: -135deg; translate: 0 0.0625rem; }
    & details > ul {
      position: absolute;
      top: calc(100% + 0.375rem);
      left: 0;
      z-index: 50;
      display: grid;
      gap: 0.125rem;
      min-width: 11rem;
      margin: 0;
      padding: 0.25rem;
      list-style: none;
      background-color: var(--popover);
      color: var(--popover-foreground);
      border: 1px solid var(--border);
      border-radius: var(--radius-lg);
      box-shadow: var(--shadow-md);
    }
  }
  /* -- Responsive collapse ------------------------------------------------
     .navbar-collapse[popover] renders INLINE (the UA's popover styles are
     reset) unless its navbar collapses at the current width - then it is a
     real popover, anchored under the .navbar-toggle. */
  .navbar-toggle {
    anchor-name: --navbar-toggle;
    display: none;
  }
  .navbar-collapse[popover] {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    position: static;
    inset: auto;
    width: auto;
    height: auto;
    margin: 0;
    padding: 0;
    overflow: visible;
    border: 0;
    background: none;
    color: inherit;
  }
  /* shared: the collapsed state (inside a media query per breakpoint) */
  .navbar[data-collapse="always"] {
    & .navbar-toggle { display: inline-flex; }
    & .navbar-collapse[popover]:not(:popover-open) { display: none; }
    & .navbar-collapse[popover]:popover-open {
      position: fixed;
      position-anchor: --navbar-toggle;
      inset: auto;
      top: anchor(bottom);
      left: anchor(left);
      position-try-fallbacks: flip-inline;
      display: grid;
      align-items: stretch;
      min-width: 14rem;
      margin: 0.5rem 0 0;
      padding: 0.375rem;
      background-color: var(--popover);
      color: var(--popover-foreground);
      border: 1px solid var(--border);
      border-radius: var(--radius-lg);
      box-shadow: var(--shadow-lg);
      & .navbar-menu { flex-direction: column; align-items: stretch; }
      & .navbar-menu details > ul { position: static; box-shadow: none; border: 0; padding: 0 0 0 0.75rem; }
    }
  }
  @media (max-width: 39.99rem) {
    .navbar[data-collapse="sm"] {
      & .navbar-toggle { display: inline-flex; }
      & .navbar-collapse[popover]:not(:popover-open) { display: none; }
      & .navbar-collapse[popover]:popover-open {
        position: fixed; position-anchor: --navbar-toggle; inset: auto; top: anchor(bottom); left: anchor(left); position-try-fallbacks: flip-inline;
        display: grid; align-items: stretch; min-width: 14rem; margin: 0.5rem 0 0; padding: 0.375rem;
        background-color: var(--popover); color: var(--popover-foreground); border: 1px solid var(--border); border-radius: var(--radius-lg); box-shadow: var(--shadow-lg);
        & .navbar-menu { flex-direction: column; align-items: stretch; }
        & .navbar-menu details > ul { position: static; box-shadow: none; border: 0; padding: 0 0 0 0.75rem; }
      }
    }
  }
  @media (max-width: 47.99rem) {
    .navbar[data-collapse="md"] {
      & .navbar-toggle { display: inline-flex; }
      & .navbar-collapse[popover]:not(:popover-open) { display: none; }
      & .navbar-collapse[popover]:popover-open {
        position: fixed; position-anchor: --navbar-toggle; inset: auto; top: anchor(bottom); left: anchor(left); position-try-fallbacks: flip-inline;
        display: grid; align-items: stretch; min-width: 14rem; margin: 0.5rem 0 0; padding: 0.375rem;
        background-color: var(--popover); color: var(--popover-foreground); border: 1px solid var(--border); border-radius: var(--radius-lg); box-shadow: var(--shadow-lg);
        & .navbar-menu { flex-direction: column; align-items: stretch; }
        & .navbar-menu details > ul { position: static; box-shadow: none; border: 0; padding: 0 0 0 0.75rem; }
      }
    }
  }
  @media (max-width: 63.99rem) {
    .navbar[data-collapse="lg"] {
      & .navbar-toggle { display: inline-flex; }
      & .navbar-collapse[popover]:not(:popover-open) { display: none; }
      & .navbar-collapse[popover]:popover-open {
        position: fixed; position-anchor: --navbar-toggle; inset: auto; top: anchor(bottom); left: anchor(left); position-try-fallbacks: flip-inline;
        display: grid; align-items: stretch; min-width: 14rem; margin: 0.5rem 0 0; padding: 0.375rem;
        background-color: var(--popover); color: var(--popover-foreground); border: 1px solid var(--border); border-radius: var(--radius-lg); box-shadow: var(--shadow-lg);
        & .navbar-menu { flex-direction: column; align-items: stretch; }
        & .navbar-menu details > ul { position: static; box-shadow: none; border: 0; padding: 0 0 0 0.75rem; }
      }
    }
  }
  /* -- Accessibility -------------------------------------------------- */
  @media (prefers-reduced-motion: reduce) {
    .navbar-menu summary::after { transition: none; }
  }
  @media (forced-colors: active) {
    .navbar { border-bottom: 1px solid CanvasText; }
    .navbar-menu a[aria-current="page"] { outline: 1px solid Highlight; }
  }
}

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