blank spaces before @charset
Test passes if there is a green rectangle below.
This test is only valid if the user agent recognises the @charset rule.
Assertion: If a @charset declaration does not start at the beginning of the first line of the file (when there is no BOM), the encoding declaration will not be recognised.
The HTML page is served as UTF-8. The CSS stylesheet is in ISO 8859-15. For the test to be successful, the stylesheet has to be read as ISO 8859-15. The @charset rule is not correctly formed, so should be ignored, but the stylesheet should still be used.
If the box is blue, the stylesheet hasn't been read at all.