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v0.1 dev

Actions and links

Back to top

Returns users to the beginning of a long page.

implementedReference catalog.he-linkHeLink

Overview

Returns users to the beginning of a long page. Its semantic foundation is Anchor link to the page-top target. Source scope: Reference catalog.

This element maps to the existing link component contract.

Visual Example

↑ Back to top

When to Use

Use Back to top when its semantic purpose matches the user task. Prefer native platform behavior, concise labels, predictable placement, and content that remains understandable without visual styling.

Do

  • Use the canonical element ID and semantic role.
  • Keep labels and state programmatically available.
  • Test the element with real content and every supported input modality.

Don't

  • Do not substitute a visually similar element with different semantics.
  • Do not add focusable descendants without a documented keyboard model.
  • Do not communicate state through color or motion alone.

Anatomy

1Trigger
2Label or icon
3State feedback
4Optional supporting text

Variants

primarysecondarycompact

Variants preserve the same semantics and accessible name. Density changes never reduce the minimum interactive target.

States

resthoverfocus-visibleactiveloadingdisabled

Focus-visible takes precedence over hover and selected styling. Loading and disabled behavior never silently remove essential information or recovery paths.

Behavior

Tab reaches the control. Enter activates links and buttons; Space activates buttons. Web targets are at least 44 × 44 CSS pixels and Flutter targets are at least 48 × 48 dp.

Accessibility

Anchor link to the page-top target. The element exposes an accessible name, role, state, value, and result where applicable; retains visible 3:1 focus indication; supports 200% text scaling and 320 CSS pixel reflow; and preserves structure in forced-colors and reduced-motion modes.

Tokens

color.* semantic roles→component.link.*→.he-link

Spacing, sizing, typography, border, radius, icon, motion, focus, and color decisions resolve from canonical tokens. Element code does not contain arbitrary visual literals.

Web and Flutter API

Web

<div class="he-link">Back to top</div>

Flutter

HeLink(
  child: const Text('Back to top'),
)

ds-back-to-top is a registry identifier only; this library does not register an autonomous custom element under that name. Use the mapped component or native semantic composition shown above.

When an element includes an icon, use the exact Tabler name and semantic size from Foundations · Iconography.

Status

implemented. The contract is registered, visually represented, and included in automated documentation and accessibility validation. This status describes contract coverage, not independent production certification.