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Animated Border CSS Generator - Online Glow & Rotate

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Animated Border CSS Generator

Online tool to create stunning glow, rotate, marching ants, breathe, and color‑cycle border animations. Customize colors, speed, and size — get clean CSS instantly.

🎛️ Animation Settings
Live Preview
✨ Animated Border ✨
đź“‹ Generated CSS

Frequently Asked Questions

An animated border uses CSS @keyframes and properties like box-shadow, border-color, or pseudo‑elements to create motion effects such as glowing, rotating gradients, or marching dashes around an element.

Use the Glow mode. It applies a box-shadow animation that alternates between two colors. You can customize the intensity, speed, and colors using the controls above. The generated CSS uses animation and box-shadow — no extra elements needed.

Yes! The generated CSS class .animated-border can be added to any block or inline‑block element. For the Rotate and Marching Ants effects, make sure the element has a position: relative; and a background color set.

They are generally hardware‑accelerated when using transform and opacity. The Rotate effect uses transform: rotate(), making it very smooth. Glow and color changes may trigger repaints, but remain performant for most use‑cases. Avoid animating hundreds of elements simultaneously.

All effects work in modern Chrome, Firefox, Safari, and Edge. Marching Ants uses -webkit-mask for the best effect; in browsers that don’t support it, a solid dashed border will be displayed as fallback.

Use the sliders and color pickers in the Animation Settings panel. The tool instantly updates both the preview and the CSS code. Simply copy the code when you’re happy with the result.
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