Callum Law 893eac18dd LibWeb: Add TupleStyleValue ...

Many CSS grammars call for us to parse `Foo || Bar` but we don't have a
good way to represent this unless we have a custom style value. Usually
we store the values in a `StyleValueList` but since that can only store
non-null elements we have to manually recheck which elements we have at
which index whenever we use it.

This style value holds a Vector of `RefPtr<StyleValue const>` so that we
can represent null values and know what values are at what index without
manually rechecking.

2026-02-20 22:01:44 +00:00

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