Scanlines
A copy-paste backgrounds component in pure HTML & CSS. Zero dependencies, framework-agnostic, MIT-licensed.
BackgroundsHTMLCSSany framework
Copy into your project
HTML
<div class="nuda-scanlines">
<span class="nuda-scanlines__sweep"></span>
</div>CSS
.nuda-scanlines {
position: relative;
background:
repeating-linear-gradient(
0deg,
rgba(228, 255, 84, 0.04) 0,
rgba(228, 255, 84, 0.04) 1px,
transparent 1px,
transparent 4px
),
linear-gradient(135deg, #09090b, #1a1a20);
}
.nuda-scanlines__sweep {
position: absolute;
left: 0;
right: 0;
height: 80px;
background: linear-gradient(180deg, transparent, rgba(228, 255, 84, 0.16), transparent);
animation: nuda-scan-sweep 4s linear infinite;
}
@keyframes nuda-scan-sweep {
0% { transform: translateY(-100%); }
100% { transform: translateY(120px); }
}How to use Scanlines
Paste the HTML where you need it and the CSS into a global stylesheet (or a <style> tag). Every class is prefixed nuda- so it never collides with Tailwind or your own styles. Tweak the CSS custom properties to match your design system.
Works in React, Vue, Svelte, Astro, Next.js, Nuxt, Laravel Blade, Django, Rails — or a single .html file. No npm install, no build step.