How are reusable content blocks used across pages?

Reusable content blocks are authored once and used across multiple pages — a shared banner, a promotional callout, a footer block — so common content is maintained in one place and appears wherever it's referenced. Updating the block updates every page that uses it. This reuse keeps content consistent and maintenance low: you don't re-author the same element on every page, you define it as…

Reusable content blocks are authored once and used across multiple pages — a shared banner, a promotional callout, a footer block — so common content is maintained in one place and appears wherever it's referenced. Updating the block updates every page that uses it. This reuse keeps content consistent and maintenance low: you don't re-author the same element on every page, you define it as a block and place it.