How do I create a neon glow in CSS?

Use layered box-shadow with zero offset and increasing blur radii: box-shadow: 0 0 10px color, 0 0 30px color, 0 0 60px color. Each layer should have decreasing opacity for a natural falloff.

Can I make text glow in CSS?

Yes. Use text-shadow with the same layered technique: text-shadow: 0 0 7px color, 0 0 20px color, 0 0 40px color. Set the text color to match the glow color for the strongest effect.

Do glow effects affect performance?

Static glows have minimal impact. Animated glows can cause repaints — use the pseudo-element opacity technique for better performance on animations.

How to Create CSS Glow Effects (Neon, Soft, Animated)

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