html iso-8859-1, css bom and @charset utf8 (in lowercase)
Test passes if there is a green rectangle below.
Assertion: When a stylesheet has a BOM and an @charset declaration that is for the right Unicode encoding, the stylesheet works.
The HTML page is served as ISO 8859-1. The CSS starts with a UTF-8 signature but also has an @charset rule declaring the encoding to be UTF-8.