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glossary

Cumulative Layout Shift (CLS)

Core Web Vital measuring visual stability by tracking unexpected layout shifts during page load. A CLS score under 0.1 indicates a stable experience.

Päivitetty viimeksi: 16. joulukuuta 2025

Definition

Core Web Vital measuring visual stability by tracking unexpected layout shifts during page load. A CLS score under 0.1 indicates a stable experience.

Why It Matters

Understanding this concept is crucial for implementing accessible, user-friendly interfaces that comply with web standards.

Examples

Common real-world implementations and usage patterns for this concept.

Best Practices

  • Follow WCAG guidelines when applicable
  • Test with assistive technologies
  • Document your implementation decisions

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