Square Spinner
A copy-paste spinners component in pure HTML & CSS. Zero dependencies, framework-agnostic, MIT-licensed.
SpinnersHTMLCSSany framework
Copy into your project
HTML
<!-- Square Spinner -->
<div class="nuda-square-spinner" role="status" aria-label="Loading">
<div class="nuda-square-spinner__shape"></div>
</div>CSS
/* Square Spinner
Square rotating while morphing between square and circle.
Customize: --sq-spinner-color, --sq-spinner-size */
.nuda-square-spinner {
--sq-spinner-color: #34d399;
--sq-spinner-size: 28px;
padding: 8px;
display: flex;
align-items: center;
justify-content: center;
}
.nuda-square-spinner__shape {
width: var(--sq-spinner-size);
height: var(--sq-spinner-size);
background: var(--sq-spinner-color);
animation: nuda-square-spin 1.8s ease-in-out infinite;
will-change: transform, border-radius;
}
@keyframes nuda-square-spin {
0% { transform: rotate(0deg); border-radius: 0; }
25% { transform: rotate(90deg); border-radius: 50%; }
50% { transform: rotate(180deg); border-radius: 0; }
75% { transform: rotate(270deg); border-radius: 50%; }
100% { transform: rotate(360deg); border-radius: 0; }
}
@media (prefers-reduced-motion: reduce) {
.nuda-square-spinner__shape {
animation: none;
border-radius: 4px;
opacity: 0.7;
}
}How to use Square Spinner
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.