SMRTR ProgrammingApr 2, 2026CSS-Tricks

Making Complex CSS Shapes Using shape()

SMRTR summary

Modern CSS's new shape() function enables developers to create complex wavy, blob, and squiggly shapes without SVG or images. The technique uses multiple curve commands with smooth transitions between adjacent curves, controlled by granularity and size variables. Custom generators simplify the math-heavy process, allowing easy creation of animated wavy dividers, fancy frames, and blob shapes.

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