0.5.0

• Much more accurate CSS comparison, including equivalent numbers, units, URLs, function names, at-rules, and whitespace.
• Preserves declaration order where it can affect the result, custom-property syntax, and meaningful selector whitespace.
• Malformed CSS is now reported as a difference instead of raising an exception or being silently ignored.
• Improved conditional-comment handling.
• Added optional comparison of content before the document’s DOCTYPE.
• The package now includes typing information (py.typed).