Tailwind UnderlinesA plugin for beautiful animated underlines

Underline animation utilities for Tailwind CSS v4

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Fully Customizable

Control thickness, duration, timing functions, offset, and colors with Tailwind's intuitive utility classes and arbitrary values.

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Create smooth underline animations with independent control over in/out directions and easing.

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Zero JavaScript required. All animations are powered by modern CSS, ensuring optimal performance and compatibility.