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Getting StartedFrameworksServer RenderingDesign TokensThemingTheme SynthesizerTypographyUtilitiesAll ComponentsAccessibilityBrowser SupportChangelogContributingStatsApp ShellAspect GridAuth ShellCenterContainerDashboard GridFloat BarInsetMasonryPage HeaderPage LayoutResizableResponsive SwitcherSectionSettings LayoutSplit PaneStatus BarStickyToolbarAnchor NavBottom NavBreadcrumbBreadcrumb MenuCommand BarDrawerFooterLinkMenubarNavigation MenuPage IndicatorPaginationRailScroll IndicatorScroll SpyScroll To TopSidebarSkip LinkStepper NavTabsTop BarTree ViewAccordionAspect RatioAvatarAvatar GroupCardCarouselCollapsibleColor SwatchCTA BannerDividerEmpty StateFeature CardIconImageImage CompareImage HotspotsInfinite ScrollLightboxMarqueeQR CodeScroll AreaSkeletonSpinnerStackVideoVirtual ListActivity HeatmapAnimated NumberBadgeBar ListChartClockComparisonCountdown TimerData GridDescription ListDiffGaugeJSON TreeKanbanLevel MeterListMeterSparklineStatStepperTagTimelineUptimeValue CardWaveformBlockquoteCode BlockCode GroupGradient TextHighlightKbdKeyboard MapMarkdownNumber FormatProseTerminalTextTime AgoTruncateTypewriterButtonButton GroupCalendarCheckboxChipColor PickerComboboxCopy ButtonDate PickerDate Range PickerField ListFieldsetFile UploadFormHotkeyIcon ButtonImage CropperInline EditInputInput GroupKnobLabelMasked InputMulti SelectNumber InputPassword InputPin InputRadio GroupRange SliderRatingSearchSegmented ControlSelectSignature PadSliderSortable ListSwitch GroupTag InputTextareaTheme ToggleTime PickerToggleTransfer ListTree SelectAlertAnnouncementBannerCommand PaletteConfirmConnection StatusContext MenuConversationDialogDropdown MenuHover CardLoading OverlayNotification PanelPopoverProgressSheetToastTooltip

Sheet

A sliding overlay panel that emerges from the bottom or right edge of the viewport, with a blurred backdrop, header, scrollable body, and footer slot.

ComponentsSheet
feedbackinteractive
<arc-sheet>

Overview

Sheet provides a modal-like surface that slides into view from the bottom or right edge of the screen, suited to contextual actions, filters, or detail views that do not warrant a full-page navigation. When opened, a backdrop with a 4px blur covers the rest of the UI and clicking it dismisses the sheet. The bottom variant includes a drag-handle bar at the top as an affordance, while the right variant omits it. The panel is structured into three zones: a header row with a heading and close button, a scrollable body for slotted content, and a sticky footer for action buttons. You can replace the default heading with any markup via the `header` named slot, and put buttons in the `footer` slot. The body area uses `overflow-y: auto` so long content scrolls naturally within the panel. Sheet manages focus trapping and scroll locking automatically. When opened, it locks `document.body` overflow to prevent background scrolling, moves focus to the close button, and listens for the Escape key to dismiss. The `arc-open` event fires when the sheet becomes visible and `arc-close` fires on dismissal, so parent components can sync state or clean up.

Guidelines

When to use

  • Use the bottom sheet for mobile-friendly contextual panels like filters or share menus
  • Use the right sheet for desktop detail panes, settings forms, or property inspectors
  • Provide a descriptive `heading` so screen readers announce the dialog purpose via `aria-label`
  • Listen to `arc-close` to reset your local open state and perform any necessary cleanup
  • Populate the `footer` slot with primary and secondary action buttons for task-oriented sheets

When not to use

  • Do not nest a Sheet inside another Sheet; use a Dialog for layered overlays instead
  • Do not use Sheet for brief confirmations or alerts; use Confirm or Toast for those patterns
  • Do not set both `side="bottom"` and `side="right"`: only one placement is active at a time
  • Do not place critical navigation inside a Sheet: it is dismissible and should contain optional content
  • Avoid overloading the sheet body with too many form fields; consider a full page for complex forms

Features

  • `snap-points` for a bottom sheet that rests at several heights (a peek strip and a full view): drag the handle between them, or step with the arrow keys
  • `no-modal` for a sheet that floats over a page that stays usable: no backdrop, no scroll lock, and focus stays where it was
  • Two placement modes: `bottom` (default) and `right`, controlled by the `side` prop
  • Backdrop overlay with `backdrop-filter: blur(4px)` that dismisses the sheet on click
  • Bottom variant includes a rounded drag-handle bar for mobile touch affordance
  • Structured layout with header, scrollable body, and sticky footer zones
  • Named slots for `header` and `footer` to customise the chrome areas
  • Automatic scroll locking on `document.body` when open, restored on close
  • Escape key dismissal with focus auto-moved to the close button on open
  • Fires `arc-open` and `arc-close` custom events for lifecycle synchronisation

Preview

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acme-dashboard
Last deployed 2 hours ago
Framework Next.js 14
Region US East (iad1)
Status Live
Team 3 members
Settings Open Project

Drag the handle, or focus it and use the arrow keys. The page behind stays usable.

Usage

This component requires JavaScript. No pure HTML/CSS version is available. Use the Web Component directly or a framework wrapper.

<!-- Bottom sheet for filters -->
<arc-button id="open-filters" variant="secondary">Filters</arc-button>
<arc-sheet id="filter-sheet" heading="Filter Results" side="bottom">
  <div style="display:flex;flex-direction:column;gap:16px;">
    <div>
      <strong style="font-size:13px;">Status</strong>
      <div style="display:flex;gap:6px;margin-top:6px;">
        <arc-chip selected>Active</arc-chip>
        <arc-chip>Archived</arc-chip>
        <arc-chip>Draft</arc-chip>
      </div>
    </div>
    <arc-select placeholder="All categories" style="width:100%;"></arc-select>
  </div>
  <div slot="footer">
    <arc-button variant="ghost" onclick="this.closest('arc-sheet').open = false">Reset</arc-button>
    <arc-button variant="primary" onclick="this.closest('arc-sheet').open = false">Apply</arc-button>
  </div>
</arc-sheet>

<!-- Right sheet for detail pane -->
<arc-button id="open-details" variant="secondary">Details</arc-button>
<arc-sheet id="detail-sheet" heading="Project Details" side="right">
  <div style="display:flex;flex-direction:column;gap:12px;font-size:13px;">
    <div style="display:flex;justify-content:space-between;">
      <span style="color:var(--text-tertiary);">Framework</span>
      <span style="font-weight:500;">Next.js 14</span>
    </div>
    <div style="display:flex;justify-content:space-between;">
      <span style="color:var(--text-tertiary);">Status</span>
      <arc-badge variant="success">Live</arc-badge>
    </div>
  </div>
  <div slot="footer">
    <arc-button variant="primary">Open Project</arc-button>
  </div>
</arc-sheet>

<script>
  document.querySelector('#open-filters').addEventListener('click', () => {
    document.querySelector('#filter-sheet').open = true;
  });
  document.querySelector('#open-details').addEventListener('click', () => {
    document.querySelector('#detail-sheet').open = true;
  });
</script>

API

headingstring''
Text displayed in the header row. Also used as the aria-label for the dialog panel.
snap-pointsstring''
Heights a bottom sheet rests at, smallest first, as a comma-separated list of CSS lengths (snap-points="120px, 50dvh, 88dvh"). From script, a string or an array. The handle then drags between them, snapping to the nearest on release or to the next on a flick, and dragging well below the smallest requests a close. The handle is also a slider: arrow keys move between heights. Ignored by a right sheet.
openbooleanfalse
Controls whether the sheet is visible. Reflected as an attribute and toggleable programmatically.
side'bottom' | 'right''bottom'
Which edge the panel slides in from. Bottom sheets are at most --sheet-max-height tall (default 80dvh); right sheets are --sheet-width wide (default 400px).
modalbooleantrue
Whether the sheet blocks the page. On (the default), the page behind is inert, scroll-locked and dimmed until the sheet closes. Off (no-modal), the sheet floats above a page that stays usable: no backdrop, no scroll lock, and opening it leaves focus where it was. Escape still closes it while focus is inside it.
snapnumber0
Index into snapPoints of the height the sheet rests at. Updated as the user drags or steps the handle.
persistentbooleanfalse
The user cannot dismiss the sheet: Escape, a backdrop click and the drag-down close are ignored, dragging below the smallest snap point settles back on it, and there is no close button. For a permanent peek strip. Setting open from script still closes it.

Events

arc-changedetail:{ value: number }
Fired when the user moves the sheet to another snap point. value is the new snap index.
arc-close
Fired when the sheet closes
arc-open
Fired when the sheet opens

See Also