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Measured entry

magicui-line-shadow-text

text-effectgradient-glowmotion on file

A client-side React text effect distributed as a shadcn registry component. It renders a Motion element with a duplicated pseudo-element, Tailwind utility classes, and a CSS keyframe animation for the traveling line shadow. It depends on Motion plus the shadcn-style cn helper backed by clsx and tailwind-merge.

Specimen
Motion capture of the mounted demo, recorded by the harness. No audio track.
Harness screenshot of magicui-line-shadow-text at 375 pixels wide
Harness screenshot at 375 pixels wide. No horizontal overflow recorded.
Harness screenshot of magicui-line-shadow-text at 768 pixels wide
Harness screenshot at 768 pixels wide. No horizontal overflow recorded.
Harness screenshot of magicui-line-shadow-text 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 magicui-line-shadow-text
BuildOK
MountOK
Console errors0
Uncaught page errors0
Horizontal overflowclean at 375, 768, 1440
Axe critical0
Axe serious0
Axe moderate0
Axe minor0
Gzip marginal69.9 KB (135.4 KB build, 65.5 KB baseline)
Bare modeFAIL
Provider requiredNO
Demo usedwritten from the component source API

What the harness recorded

BARE BUILD

✗ Build failed in 9m 9s
error during build:
[vite:load-fallback] Could not load <sandbox>/src/lib/utils (imported by src/cut/line-shadow-text.tsx): ENOENT: no such file or directory, open '<sandbox>/src/lib/utils'

Verdict

A focused, flexible heading accent that builds and mounts cleanly in its intended environment. It needs a shadcn-style setup, and the Motion dependency is a meaningful tradeoff for such a narrow effect. Use it when the animated treatment will be reused or is central to the page.

Use it if

  • You need a compact animated accent inside a hero heading or campaign title.
  • Your app already uses Tailwind utilities and has a shadcn-style component foundation.
  • The text is a plain string and you want to choose the rendered semantic element.

Skip it if

  • Your heading needs nested markup, icons, or separately styled words because the child must be a string.
  • You are minimizing client-side animation dependencies for a small decorative effect.
  • Your motion policy requires reduced-motion behavior without adding an external override.
  • Your project does not use Tailwind and you do not want to translate its utility and theme CSS.

Install

Installation record for magicui-line-shadow-text
Declared dependenciesmotion, clsx, tailwind-merge
Missing on installnone
Bare installfails once the shadcn-style helpers are removed, so it needs that setup
Providerno provider required in the harness

In a non-shadcn project, add Motion, clsx, and tailwind-merge; provide a cn utility or replace that call; configure the source alias or switch to a relative import; and add the Tailwind theme animation plus its line-shadow keyframes. Keep the file client-side in frameworks that distinguish server and client components.

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.

Author repository

github.com/magicuidesign/magicui
License
MIT
Record published
2026-08-17

Alternatives

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