Dashed March
A copy-paste borders & outlines component in pure HTML & CSS. Zero dependencies, framework-agnostic, MIT-licensed.
Borders & OutlinesHTMLCSSany framework
Marching Ants
Copy into your project
HTML
<div class="nuda-dashed-march">
Your content here
</div>CSS
/* Dashed March
Marching ants dashed border.
Customize: --march-color, dash size */
.nuda-dashed-march {
--march-color: #6366f1;
position: relative;
border-radius: 12px;
background: #111;
padding: 24px 32px;
}
.nuda-dashed-march::before {
content: '';
position: absolute;
inset: -1px;
border-radius: inherit;
background:
repeating-linear-gradient(90deg, var(--march-color) 0, var(--march-color) 6px, transparent 6px, transparent 12px) top / 100% 1.5px no-repeat,
repeating-linear-gradient(0deg, var(--march-color) 0, var(--march-color) 6px, transparent 6px, transparent 12px) right / 1.5px 100% no-repeat,
repeating-linear-gradient(90deg, var(--march-color) 0, var(--march-color) 6px, transparent 6px, transparent 12px) bottom / 100% 1.5px no-repeat,
repeating-linear-gradient(0deg, var(--march-color) 0, var(--march-color) 6px, transparent 6px, transparent 12px) left / 1.5px 100% no-repeat;
animation: nuda-march-move 1s linear infinite;
}
@keyframes nuda-march-move {
to {
background-position:
12px top,
right 12px,
calc(100% - 12px) bottom,
left calc(100% - 12px);
}
}
@media (prefers-reduced-motion: reduce) {
.nuda-dashed-march::before { animation: none; }
}How to use Dashed March
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.