# part attribute

An attribute naming parts inside a shadow tree so external CSS can select them.

## What is **`part` attribute**?

**`part` attribute** — An attribute naming parts inside a shadow tree so external CSS can select them.

Level: Freelancer · [More HTML terms at this level](https://www.ask-codey.com/glossary/subjects/html/freelancer)

Updated: September 27, 2026

Source: https://www.ask-codey.com/glossary/part-attribute