Cascade Layers for Large Systems
Cascade layers provide explicit ordering between groups of CSS rules. A scalable architecture may define layers such as reset, base, components, utilities, and overrides.
This reduces the need to win specificity battles between unrelated styles.
Cascade Layer Order
Layered CSS Architecture
@layer reset, base, components, utilities;
@layer reset {
*, *::before, *::after {
box-sizing: border-box;
}
}
@layer components {
.button {
padding: 0.75rem 1rem;
}
}
@layer utilities {
.hidden {
display: none !important;
}
}💡 Layers create an explicit cascade hierarchy.
Key Takeaways
- Layers can control precedence without excessive selector specificity.
- Define a clear layer strategy before a project becomes difficult to restructure.
Knowledge Check
What problem can `@layer` help solve?