CSS Coding Standards

(Draft, to be continued)


Indentation rules

  • 2 spaces before properties
  • no space before “:”, one space after
  • only one space between values of the same property


Please keep rules semantically linked grouped together, with a comment about what they are for.


  • Try to use existing classes rather than introduce new ones
  • Keep things as simple as possible while in the framework
  • Think about later customization by application
  • Avoid introducing a new CSS file for a few lines of CSS, at least while the framework doesn’t include packing functionalities