Animated Underline Navbar

Navbar31: Animated Underline Navbar

Minimal, centered-max-width navbar for portfolios and creative agencies where each nav link carries a configurable hover/active underline animation instead of background highlighting. The active page is driven by an activeNavItem prop rather than route detection.

Installation

Swap YOUR_EMAIL and YOUR_KEY for the email and license key on your account. Find your license key on your account page.

Radix flavor

npx shadcn add "https://ui.beste.co/r/navbar31?email=YOUR_EMAIL&license_key=YOUR_KEY"

Base UI flavor

npx shadcn add "https://ui.beste.co/r-base/navbar31?email=YOUR_EMAIL&license_key=YOUR_KEY"

This installs the block to components/beste/block/navbar31.tsx and the shadcn/ui dependency it needs (button).

Quick start

The installed file exports navbar31Demo alongside the block: the exact props behind the preview above. Spread it to get a working navbar in one line.

import { Navbar31, navbar31Demo } from "@/components/beste/block/navbar31";

export default function Layout() {
  return <Navbar31 {...navbar31Demo} />;
}

Then replace the demo with your own props. Written out, a trimmed setup looks like this:

import { Navbar31 } from "@/components/beste/block/navbar31";

export default function Layout() {
  return (
    <Navbar31
      logo={{ text: "Studio", href: "/" }}
      navItems={[
        { label: "Home", href: "/" },
        { label: "Work", href: "/work" },
        { label: "Contact", href: "/contact" },
      ]}
      activeNavItem="Home"
      buttons={[{ label: "Sign up", href: "/signup" }]}
      underlineStyle="grow"
    />
  );
}

Props

type NavItem = { label: string; href?: string };

Behavior notes

• activeNavItem is not derived from the current route; pass the current page's label yourself to keep the underline in sync with navigation.
• underlineStyle swaps the underline's animation origin/behavior: slide scales in from the left, grow scales in from the center, fade cross-fades opacity. Non-active items animate the same way on hover.
• In the mobile menu, a button with variant="default" gets rounded-none applied only there; on desktop it keeps the shadcn default rounding.
• The bar is sticky (sticky top-0 z-50) with a plain bg-background, no border or blur.
• The mobile breakpoint is lg (1024px); mobile links are listed full-width with a bottom border per row and lighter (font-light) weight.