css mega menu

11 hand-coded CSS header designs covering the patterns search demand actually targets — pure-CSS sticky header that solidifies on scroll using scroll-timeline (no JavaScript, no scroll listener, zero impact on Core Web Vitals), CSS Grid mega menu with :focus-within keyboard accessibility, performance-first flexbox 3-column navbar, full-screen overlay hamburger header via checkbox hack, glassmorphism transparent bar with backdrop-filter, sticky announcement bar with grid-template-rows dismiss animation, two-tier double-decker enterprise header, animated link hover effects (scaleX underline, clip-up fill, gradient sweep, dual-layer swap, bracket reveal), vertical sidebar navigation with persistent rail, three-level multi-level dropdown menu via :focus-within, and a shrinking header on scroll using animation-timeline. 10 truly pure-CSS, 1 with a tiny optional vanilla JS snippet. WCAG-aware, prefers-reduced-motion respected, scoped class names that never collide with your existing styles, MIT-licensed.

6 hand-coded CSS mega-menu and dropdown layouts — luxury editorial fashion, cyberpunk terminal panel, biophilic architecture studio, Swiss-grid department store, precision outdoor gear finder, and flash-sale command center. Hover + click/tap. Copy-paste ready, accessible, mobile-friendly.

15 hand-coded CSS navigation menu designs covering every production navigation pattern developers ship in 2026 — horizontal navigation bar with hover underline, dropdown navigation menu, full mega menu with category columns and feature panel, hamburger menu with slide-out drawer, full-screen overlay navigation, sticky navigation bar with scroll shrink (scroll-driven CSS animation), sidebar navigation menu, tab navigation with animated sliding indicator, breadcrumb navigation, glassmorphism navigation (frosted-glass backdrop-filter pattern), animated navigation icons with labels, multi-level accordion navigation, navigation with magnetic hover effect, neon glow navigation menu, and morphing navigation pill indicator. 13 demos are 100% pure CSS using <code>:hover</code> + <code>:focus-within</code> + <code>:checked</code> state machines — drop into any stack with zero JS dependencies. 2 use ~20-50 lines of vanilla JavaScript for sticky-scroll behaviour and pointer-tracking magnetic hover effects. All ship semantic <code>&lt;nav&gt;</code> + <code>&lt;ul&gt;</code> markup with <code>aria-current="page"</code> on the active link, <code>aria-expanded</code> on toggles, <code>aria-haspopup</code> on dropdown triggers, respect <code>prefers-reduced-motion</code>, use scoped <code>.nav-NN__*</code> class names so multiple navs coexist on the same page without style bleed, ship with 44×44px tap targets (WCAG 2.5.5), MIT-licensed. Drop into React, Vue, Astro, Svelte, Rails ERB, plain HTML, WordPress, Shopify, or any other stack.