StyleRule

struct

csharp

public readonly record struct StyleRule

One rule: a selector, the declarations it applies, and where it sits in the cascade.

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Fields and properties (8)

public Selector Selector
Its compiled selector.
public DeclarationRange Declarations
The declarations it applies.
public StyleOrigin Origin
Who it came from.
public int Layer
Its cascade layer, or Unlayered.
public int Order
Its position in source order across every stylesheet loaded.
public bool BlocksSharing
Whether matching it can depend on something a StyleSharingKey does not carry. See SharingIsSound.
public int Conditions
The @media group it was written inside, or Unconditional. ⚠ On the rule rather than resolved away at load, which is what lets two windows of one document answer max-width differently. The loader used to evaluate the condition and either emit the rules or drop them, which put the answer in the rule set — and the rule set is shared by every surface, so the question could be asked once and was asked of the primary window. See MediaConditions.
public int Containers
The @container group it was written inside, or Unconditional. ⚠ A second, independent id rather than another value in , because the two conditions are about different subjects and both have to hold. @media (min-width: 900px) { @container (min-width: 400px) { … } } asks one question of the window and one of a box; a single tagged chain would have to interleave two verdict tables to answer it, and each table is already a conjunction that evaluates in one ascending pass on its own.

public StyleRule(Selector Selector, DeclarationRange Declarations, StyleOrigin Origin, int Layer, int Order, bool BlocksSharing, int Conditions, int Containers)
One rule: a selector, the declarations it applies, and where it sits in the cascade.