Sync with dee9d51
Sync with dee9d51

Synced with dart-lang/site-webdev master branch, commit dee9d51:
https://github.com/dart-lang/site-webdev/tree/dee9d514950113bd176829b393fd09c361bd7f3c/examples/ng/doc/component-styles

googlearchive/component-styles,googlearchive/component-styles,angular-examples/component-styles,angular-examples/component-styles