The following rules must be followed:
- The CSS must be valid conform CSS 2.1 specification. This can be tested using the W3C validator
The following recommendations could be followed:
* Proprieties:
~** alphabetical order;
~** 2 spaces indentation;
~** use of CSS shorthands;
* Grouping:
~** comment headers for separation and grouping of different parts of the code;
* Localization:
~** "Overwrites" and "Should be in" comments for dependencies overwriting;