Measured entry

efferd-header-1

navbarminimal-flatmotion on file

A sticky marketing header with desktop navigation, sign-in and primary actions, plus a full-screen mobile menu rendered through a React portal. It ships as a shadcn registry block with logo, menu-toggle, and scroll-hook files, and expects the shadcn button, cn helper, Tailwind theme utilities, and Radix UI dependency.

Specimen
Motion capture of the mounted demo, recorded by the harness. No audio track.
Harness screenshot of efferd-header-1 at 375 pixels wide
Harness screenshot at 375 pixels wide. No horizontal overflow recorded.
Harness screenshot of efferd-header-1 at 768 pixels wide
Harness screenshot at 768 pixels wide. No horizontal overflow recorded.
Harness screenshot of efferd-header-1 at 1440 pixels wide
Harness screenshot at 1440 pixels wide. No horizontal overflow recorded.

Measured

Every value below was written by the harness on the run that produced the frames above. None of it is derived from the prose.

Harness measurements recorded for efferd-header-1
BuildOK
MountOK
Console errors0
Uncaught page errors0
Horizontal overflowclean at 375, 768, 1440
Axe critical0
Axe serious0
Axe moderate0
Axe minor0
Gzip marginal34.8 KB (100.2 KB build, 65.4 KB baseline)
Bare modeFAIL
Provider requiredNO
Demo usedwritten from the component source API

What the harness recorded

BARE BUILD

✗ Build failed in 1m 20s
error during build:
[vite:load-fallback] Could not load <sandbox>/src/lib/utils (imported by src/cut/header/1/header.tsx): ENOENT: no such file or directory, open '<sandbox>/src/lib/utils'

Verdict

A sound starter for a small marketing site, with sensible responsive behavior and accessible menu state. It needs a shadcn-style setup before it will build or mount; once that plumbing is present, the implementation is straightforward to adapt.

Use it if

  • You need a compact landing-page header with simple anchor navigation and two account actions.
  • Your mobile navigation should take over the remaining screen and lock background scrolling while open.
  • Your app already uses shadcn conventions and can replace the supplied brand and placeholder links.

Skip it if

  • You need dropdowns, search, nested navigation, or an authenticated account menu.
  • Your routing layer requires framework-specific link components and active-route styling out of the box.
  • You do not want a portal-based mobile overlay or global body scroll locking.
  • You need a dependency-light header that can be copied into an unconfigured React project unchanged.

Install

Installation record for efferd-header-1
Declared dependenciesradix-ui
Missing on installnone
Bare installfails once the shadcn-style helpers are removed, so it needs that setup
Providerno provider required in the harness

Add the cn utility at the expected alias, configured path aliases, Tailwind theme and animation utilities, the shadcn Button and buttonVariants implementation, Radix UI, and the supplied Logo, MenuToggleIcon, and useScroll files. The host must support React client components and portals.

Source and credit

This page is a review, not a copy. The component source lives with its author and this site does not republish it. Read the license before you use anything.

Alternatives

Other published entries for the navbar pattern, ordered by what they measured: mounts first, then clean axe scans, then bare-mode passes, then the smaller bundle.